{"title":"TWSBI","description":"\u003cp\u003eFountain pens made in Taiwan, featuring affordable demonstrators with pistons.\u003c\/p\u003e","products":[{"product_id":"twsbi-diamond-50-ink-bottle-blue","title":"TWSBI Diamond 50 Ink Bottle - Blue","description":"\u003cp\u003eThis glass inkwell from TWSBI has a black anodized aluminum top with blue accents. It has an ink capacity of approximately 50ml.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Diamond 580, Classic, Mini, or Precision fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.\u003c\/p\u003e\n\n\u003cp\u003eThe top of this Diamond 50 Inkwell is also interchangeable with the top of the TWSBI 70ml ink bottles.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884780224555,"sku":"TW-M7442190","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Diamond50-Blue-1-sq.jpg?v=1755193812"},{"product_id":"twsbi-diamond-50-ink-bottle-red","title":"TWSBI Diamond 50 Ink Bottle - Red","description":"\u003cp\u003eThis glass inkwell from TWSBI has a black anodized aluminum top with red accents. It has an ink capacity of approximately 50ml.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Diamond 580, Classic, Mini, or Precision fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.\u003c\/p\u003e\n\n\u003cp\u003eThe top of this Diamond 50 Inkwell is also interchangeable with the top of the TWSBI 70ml ink bottles.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884781142059,"sku":"TW-M7442170","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Diamond50-InkBottle-Red-1-sq.jpg?v=1755193850"},{"product_id":"twsbi-diamond-50-ink-bottle-black","title":"TWSBI Diamond 50 Ink Bottle - Black","description":"\u003cp\u003eThis glass inkwell from TWSBI has a black anodized aluminum top with black accents. It has an ink capacity of approximately 50ml.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Diamond 580, Classic, Mini, or Precision fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.\u003c\/p\u003e\n\n\u003cp\u003eThe top of this Diamond 50 Inkwell is also interchangeable with the top of the TWSBI 70ml ink bottles.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884781240363,"sku":"TW-M7442980","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Diamond50-InkBottle-Black-1-sq.jpg?v=1755193757"},{"product_id":"twsbi-vac-20a-ink-bottle-red","title":"TWSBI Vac 20A Ink Bottle - Red","description":"This plastic inkwell from TWSBI has a red cap and holds up to 20ml of your favorite fountain pen ink.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Vac 700, Vac700R or Vac Mini fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884781666347,"sku":"TW-M7444540","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/Vac20A-Red.jpg?v=1757081935"},{"product_id":"twsbi-vac-20a-ink-bottle-orange","title":"TWSBI Vac 20A Ink Bottle - Orange","description":"This plastic inkwell from TWSBI has an orange cap and holds up to 20ml of your favorite fountain pen ink.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Vac 700, Vac700R or Vac Mini fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884781699115,"sku":"TW-M7444550","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/Vac20A-Orange.jpg?v=1757081932"},{"product_id":"twsbi-vac-20a-ink-bottle-green","title":"TWSBI Vac 20A Ink Bottle - Green","description":"This plastic inkwell from TWSBI has a green cap and holds up to 20ml of your favorite fountain pen ink.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Vac 700, Vac700R or Vac Mini fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884781764651,"sku":"TW-M7444560","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/Vac20A-Green.jpg?v=1757081929"},{"product_id":"twsbi-vac-20a-ink-bottle-blue","title":"TWSBI Vac 20A Ink Bottle - Blue","description":"This plastic inkwell from TWSBI has a blue cap and holds up to 20ml of your favorite fountain pen ink.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Vac 700, Vac700R or Vac Mini fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884781797419,"sku":"TW-M7444570","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/Vac20A-Blue.jpg?v=1757081926"},{"product_id":"twsbi-vac-20a-ink-bottle-black","title":"TWSBI Vac 20A Ink Bottle - Black","description":"This plastic inkwell from TWSBI has a black cap and holds up to 20ml of your favorite fountain pen ink.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Vac 700, Vac700R or Vac Mini fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":11884781830187,"sku":"TW-M7444580","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/Vac20A-Black.jpg?v=1757081922"},{"product_id":"twsbi-diamond-580al-fountain-pen-silver","title":"TWSBI Diamond 580AL Fountain Pen - Silver","description":"\u003cp\u003eThe TWSBI Diamond 580AL comes with a benchmark piston ink-filling mechanism and has all detachable parts. The clear demonstrator barrel allows you to see your ink color and remaining ink level. It has a silver aluminum grip section and screw-cap. It comes with a stainless steel nib and is presented in a modern clear display case.\u003cbr\u003e\u003cbr\u003e The idea behind the TWSBI Diamond 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was TWSBI's goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003cbr\u003e\u003cbr\u003e The TWSBI Diamond 580 is a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, TWSBI has created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.\u003c\/p\u003e\n\n\u003cp\u003eYou may notice a white substance on your 580AL or 580ALR pistons. This is bearing grease, and must not be removed during cleanings, or replaced by silicone grease.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884891766827,"sku":"TW-M7444240","price":72.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884891799595,"sku":"TW-M7444250","price":72.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":11884891832363,"sku":"TW-M7444260","price":72.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-580AL-Silver-OW-2-sq.jpg?v=1755194733"},{"product_id":"twsbi-diamond-580-fountain-pen-clear","title":"TWSBI Diamond 580 Fountain Pen - Clear","description":"\u003cp\u003eThe TWSBI Diamond 580 comes with a benchmark piston ink-filling mechanism and has all detachable parts. The clear demonstrator barrel allows you to see your ink color and remaining ink level. It has a clear grip section and screw-cap. It comes with a stainless steel nib and is presented in a modern clear display case.\u003cbr\u003e\u003cbr\u003e The idea behind the TWSBI Diamond 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was TWSBI's goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003cbr\u003e\u003cbr\u003e The TWSBI Diamond 580 is a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, TWSBI has created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.\u003c\/p\u003e\n\u003cp\u003eYou may notice a white substance on your 580AL or 580ALR pistons. This is white ball bearing grease, and must not be removed during cleanings, or replaced by silicone grease\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884892028971,"sku":"TW-M7443110","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":11884892094507,"sku":"TW-M7443120","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":11884892127275,"sku":"TW-M7443130","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":11884892160043,"sku":"TW-M7443140","price":55.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":11884892192811,"sku":"TW-M7443150","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-580-Clear-OW-3-sq.jpg?v=1755194075"},{"product_id":"twsbi-vac-mini-steel-nib-unit","title":"TWSBI Vac Mini Steel Nib Unit","description":"\u003cp\u003eThis stainless steel replacement nib unit fits the TWSBI Vac Mini. It includes the nib, feed, housing, and clear grip section.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884892291115,"sku":"TW-M7444750","price":24.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":11884892323883,"sku":"TW-M7444760","price":24.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":11884892356651,"sku":"TW-M7444770","price":24.0,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":11884892389419,"sku":"TW-M7444780","price":24.0,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":11884892422187,"sku":"TW-M7444790","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-VacMini-Silver-Steel-EF-OW-1.jpg?v=1757007707"},{"product_id":"twsbi-eco-fountain-pen-black","title":"TWSBI ECO Fountain Pen - Black","description":"The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a solid black cap. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":14023986642987,"sku":"TW-M7444280","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884892749867,"sku":"TW-M7444290","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":14023988838443,"sku":"TW-M7444300","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":14023991754795,"sku":"TW-M7444310","price":36.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":14023993065515,"sku":"TW-M7444320","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-ECO-Black-OW-2-sq.jpg?v=1755195707"},{"product_id":"twsbi-eco-fountain-pen-clear","title":"TWSBI ECO Fountain Pen - Clear","description":"The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a clear cap. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884892717099,"sku":"TW-M7445300","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":11884892815403,"sku":"TW-M7445310","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":11884893012011,"sku":"TW-M7445320","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":11884893143083,"sku":"TW-M7445330","price":36.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":11884893274155,"sku":"TW-M7445340","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-ECO-Clear-OW-2.jpg?v=1756406758"},{"product_id":"twsbi-eco-fountain-pen-white","title":"TWSBI ECO Fountain Pen - White","description":"The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a solid white cap. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib.\u003cbr\u003e\u003cbr\u003e\nTWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884892782635,"sku":"TW-M7444330","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884892913707,"sku":"TW-M7444340","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":11884893044779,"sku":"TW-M7444350","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":11884893175851,"sku":"TW-M7444360","price":36.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":11884893241387,"sku":"TW-M7444370","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-ECO-White-OW-2.jpg?v=1756407205"},{"product_id":"twsbi-mini-fountain-pen-classic","title":"TWSBI Mini Fountain Pen - Classic","description":"The TWSBI Mini comes with a benchmark piston ink-filling mechanism and has all detachable parts. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a solid black cap. It is completed with silver trim and a silver stainless steel nib.\u003cbr\u003e\u003cbr\u003e\nTWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884892880939,"sku":"TW-M7443070","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884892946475,"sku":"TW-M7443080","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":11884893077547,"sku":"TW-M7443090","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":11884893208619,"sku":"TW-M7443310","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-Mini-Classic-OW-2.jpg?v=1756406543"},{"product_id":"twsbi-mini-fountain-pen-clear","title":"TWSBI Mini Fountain Pen - Clear","description":"The TWSBI Mini comes with a benchmark piston ink-filling mechanism and has all detachable parts. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a clear cap. It is completed with silver trim and a silver stainless steel nib.\u003cbr\u003e\u003cbr\u003e\nTWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884893765675,"sku":"TW-M7442990","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":11884893896747,"sku":"TW-M7443000","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":11884893929515,"sku":"TW-M7443010","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-Mini-OW-Clear-2.jpg?v=1756406568"},{"product_id":"twsbi-580-steel-nib-unit","title":"TWSBI 580 Steel Nib Unit","description":"\u003cp\u003eThis stainless steel replacement nib unit fits the TWSBI 580, 580AL, and 580ALR. It's also backwards compatible with the 530 and 540. It includes the nib, feed, housing, and clear grip section.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884893339691,"sku":"TW-M7443560","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884893372459,"sku":"TW-M7443570","price":22.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":11884893437995,"sku":"TW-M7443580","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":11884893503531,"sku":"TW-M7443590","price":22.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":11884893601835,"sku":"TW-M7443600","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Diamond580-Silver-Steel-EF-OW-1.jpg?v=1757007762"},{"product_id":"twsbi-mini-al-fountain-pen-silver","title":"TWSBI Mini AL Fountain Pen - Silver","description":"\u003cp\u003eThe TWSBI Mini AL comes with a benchmark piston ink-filling mechanism and has all detachable parts. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a clear cap. It is enhanced with a silver aluminum grip section and piston mechanism. It is completed with silver trim and a silver stainless steel nib.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.\u003c\/p\u003e\n\n\u003cp\u003eYou may notice a white substance on your 580AL or 580ALR pistons. This is bearing grease, and must not be removed during cleanings, or replaced by silicone grease.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":31413332869163,"sku":"TW-M7445000","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":11884893667371,"sku":"TW-M7445010","price":65.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":31413333721131,"sku":"TW-M7445020","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-Mini-AL-OW-Silver-2.jpg?v=1756406533"},{"product_id":"twsbi-mini-steel-nib-unit","title":"TWSBI Mini Steel Nib Unit","description":"\u003cp\u003eThis stainless steel replacement nib unit fits the TWSBI Mini and Mini AL. It includes the nib, feed, housing, and clear grip section.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884893405227,"sku":"TW-M7443230","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884893470763,"sku":"TW-M7443240","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":11884893536299,"sku":"TW-M7443250","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":11884893634603,"sku":"TW-M7443260","price":22.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":11884893700139,"sku":"TW-M7443330","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Mini-Silver-Steel-EF-OW-1.jpg?v=1757007781"},{"product_id":"twsbi-vac700r-steel-nib-unit","title":"TWSBI Vac700R Steel Nib Unit","description":"This silver stainless steel replacement nib unit fits the TWSBI Vac700R. It includes the nib, feed, housing, and clear grip section.\u003cbr\u003e\u003cbr\u003e\nThe Vac700 has been updated to now be called the Vac700R. TWSBI made small updates to the internal of the pen valving. The old Vac700 used to have 2 small valves. Now, it has only 1 large valve. The bottom of the grip\/feeder section has also been enlarged and tapered more drastically. They found by doing these two adjustments, the flow of the pen when the end cap is open increased a small percentage. This is the same design they incorporated in the Vac Mini series.\u003cbr\u003e\u003cbr\u003e\nDue to the bottom of the grip\/feeder section being enlarged and tapered differently, the individual nib sets from the original Vac700 pen will NOT work on the Vac700R. Only the Vac700R nib sets will go along with the Vac700R fountain pen.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884894158891,"sku":"TW-M7446000","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884894191659,"sku":"TW-M7446010","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":11884894224427,"sku":"TW-M7446020","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":11884894257195,"sku":"TW-M7446030","price":26.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":11884894322731,"sku":"TW-M7446040","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Vac700R-Silver-Steel-EF-OW-1.jpg?v=1757007718"},{"product_id":"twsbi-precision-fountain-pen","title":"TWSBI Precision Fountain Pen - GunMetal","description":"\u003cp\u003eThis TWSBI Precision fountain pen has an aluminum body and grip with stainless steel trim. It is equipped with a stainless steel nib. Like all TWSBIs, it comes with a benchmark piston ink-filling mechanism and has all detachable parts.\u003c\/p\u003e\n\u003cp\u003eIt uses the same nib as the TWSBI Diamond 580; however the 580 nib unit itself is not compatible in the Precision. Only the nib is swappable.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884894355499,"sku":"TW-M7446200","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884894421035,"sku":"TW-M7446210","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":11884894486571,"sku":"TW-M7446220","price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Precision-OW-2.jpg?v=1759945695"},{"product_id":"twsbi-vac700r-fountain-pen-clear","title":"TWSBI Vac700R Fountain Pen - Clear","description":"\u003cp\u003eThe TWSBI Vac700R comes with a vacuum filler mechanism. This fountain pen features a clear demonstrator body with a stainless steel nib.\u003c\/p\u003e\n\u003cp\u003eTWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.\u003cbr\u003e\u003cbr\u003eIf you're taking apart this pen, note that the mechanism on the Vac700R removes out of the pen in a counter-clockwise direction. This is the opposite direction from other TWSBI pens like the 580.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884894748715,"sku":"TW-M7445950","price":72.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":11884894847019,"sku":"TW-M7445960","price":72.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":11884894945323,"sku":"TW-M7445970","price":72.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":11884895043627,"sku":"TW-M7445980","price":72.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":11884895141931,"sku":"TW-M7445990","price":72.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-Vac700R-Clear-OW-2.jpg?v=1756406422"},{"product_id":"twsbi-vac-mini-fountain-pen-clear","title":"TWSBI Vac Mini Fountain Pen - Clear","description":"The TWSBI Vac Mini is a slightly shorter version of the Vac700R. This clear demonstrator fountain pen fills via a vacuum filler mechanism and has a stainless steel nib.\u003cbr\u003e\u003cbr\u003e\nTWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884895273003,"sku":"TW-M7444380","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":11884895338539,"sku":"TW-M7444390","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":11884895436843,"sku":"TW-M7444400","price":65.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-VAC-Mini-OW-Clear-2.jpg?v=1756406455"},{"product_id":"twsbi-vac-mini-fountain-pen-smoke","title":"TWSBI Vac Mini Fountain Pen - Smoke","description":"The TWSBI Vac Mini is a slightly shorter version of the Vac700R. This clear demonstrator fountain pen fills via a vacuum filler mechanism, has translucent grey accents on the grip and piston knob, and has a stainless steel nib.\u003cbr\u003e\u003cbr\u003e\nTWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":11884896256043,"sku":"TW-M7445900","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":11884896321579,"sku":"TW-M7445910","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":11884896387115,"sku":"TW-M7445920","price":65.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":11884896518187,"sku":"TW-M7445940","price":65.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-VAC-Mini-Smoke-OW-2_d0d224af-1240-4703-b5fc-629e74220170.jpg?v=1756406466"},{"product_id":"twsbi-diamond-580alr-fountain-pen-nickel-gray","title":"TWSBI Diamond 580ALR Fountain Pen - Nickel Gray","description":"\u003cp\u003eThe TWSBI Diamond 580ALR comes with a benchmark piston ink-filling mechanism and has all detachable parts. The clear demonstrator barrel allows you to see your ink color and remaining ink level. It has a silver aluminum grip section and screw-cap. The aluminum is enhanced with a subtle matte finish, and circular engravings in the grip and cap area. It comes with a stainless steel nib and is presented in a modern clear display case. \u003cbr\u003e\u003cbr\u003e The idea behind the TWSBI Diamond 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was TWSBI's goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003cbr\u003e\u003cbr\u003e The TWSBI Diamond 580 is a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, TWSBI has created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.\u003c\/p\u003e\n\n\u003cp\u003eYou may notice a white substance on your 580AL or 580ALR pistons. This is bearing grease, and must not be removed during cleanings, or replaced by silicone grease.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":12830901108779,"sku":"TW-M7447050","price":72.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":12830902124587,"sku":"TW-M7447060","price":72.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":12830902157355,"sku":"TW-M7447070","price":72.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":12830902222891,"sku":"TW-M7447090","price":72.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-580ALR-NickelGray-OW-2-sq.jpg?v=1755195277"},{"product_id":"twsbi-go-fountain-pen-sapphire","title":"TWSBI GO Fountain Pen - Sapphire","description":"\u003cp\u003eThe TWSBI GO is the most affordable TWSBI fountain pen yet! A unique feature of this model is the spring loaded piston. This pen has a translucent blue body and clear grip section, so you can see your ink and the spring piston mechanism at work, and has a clipless push\/snap cap. It is incredibly easy to fill this pen from bottled ink - simply unscrew the barrel to access the plunger, submerge the pen’s nib down into the ink, press down on the piston to compress the spring, and it will fill the barrel with ink! Screw the barrel back on and you’re ready to write. It is completed with a silver stainless steel nib.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":12830957043755,"sku":"TW-M2530210","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":12830958059563,"sku":"TW-M2530220","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":12830958092331,"sku":"TW-M2530230","price":21.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":12830958157867,"sku":"TW-M2530250","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-GO-Sapphire-OW-2.jpg?v=1756407613"},{"product_id":"twsbi-go-fountain-pen-smoke","title":"TWSBI GO Fountain Pen - Smoke","description":"\u003cp\u003eThe TWSBI GO is the most affordable TWSBI fountain pen yet! A unique feature of this model is the spring loaded piston. This pen has a translucent smoke grey body and clear grip section, so you can see your ink and the spring piston mechanism at work, and has a clipless push\/snap cap. It is incredibly easy to fill this pen from bottled ink - simply unscrew the barrel to access the plunger, submerge the pen’s nib down into the ink, press down on the piston to compress the spring, and it will fill the barrel with ink! Screw the barrel back on and you’re ready to write. It is completed with a silver stainless steel nib.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Fine","offer_id":12830934302763,"sku":"TW-M2530270","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":12830934335531,"sku":"TW-M2530280","price":21.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":12830934401067,"sku":"TW-M2530300","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-GO-Smoke-OW-2.jpg?v=1756407624"},{"product_id":"twsbi-eco-fountain-pen-transparent-blue-special-edition","title":"TWSBI ECO Fountain Pen - Transparent Blue","description":"The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a translucent blue cap and piston knob. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib.\u003cbr\u003e\u003cbr\u003eTWSBI’s belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":13572619272235,"sku":"TW-M7446860","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":13572619305003,"sku":"TW-M7446870","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":13572619370539,"sku":"TW-M7446880","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":13572619403307,"sku":"TW-M7446890","price":36.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":13572619436075,"sku":"TW-M7446900","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-ECO-TransparentBlue-OW-2.jpg?v=1756407065"},{"product_id":"twsbi-eco-t-fountain-pen-clear","title":"TWSBI ECO-T Fountain Pen - Clear","description":"The TWSBI ECO-T fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a clear cap. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib. The ECO-T differs from the ECO in that it has a triangular grip section for ease of holding the pen, and triangular shaped cap and piston knob instead of hexagon.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":14331683405867,"sku":"TW-M7446360","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":14331683438635,"sku":"TW-M7446370","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":14331683471403,"sku":"TW-M7446380","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":14331683504171,"sku":"TW-M7446390","price":36.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":14331683536939,"sku":"TW-M7446400","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-EcoT-Clear-OW-2.jpg?v=1756406706"},{"product_id":"twsbi-go-fountain-pen-clear","title":"TWSBI GO Fountain Pen - Clear","description":"\u003cp\u003eThe TWSBI GO is the most affordable TWSBI fountain pen yet! A unique feature of this model is the spring loaded piston. This resin pen has a clear body and clear grip section, so you can see your ink and the spring piston mechanism at work, and has a clipless push\/snap cap. It is completed with a silver stainless steel nib.\u003c\/p\u003e\n\u003cp\u003eIt is incredibly easy to fill this pen from bottled ink - simply unscrew the barrel to access the plunger, submerge the pen’s nib down into the ink, press down on the piston to compress the spring, and it will fill the barrel with ink! Screw the barrel back on and you’re ready to write.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":16361181249579,"sku":"TW-M7447310","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":16361181315115,"sku":"TW-M7447320","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":16361181347883,"sku":"TW-M7447330","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":16361181380651,"sku":"TW-M7447340","price":21.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":16361181413419,"sku":"TW-M7447350","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-GO-Clear-OW-2-1.jpg?v=1756407586"},{"product_id":"twsbi-diamond-50-ink-bottle-polished-al","title":"TWSBI Diamond 50 Ink Bottle - Polished AL","description":"\u003cp\u003eThis glass inkwell from TWSBI has a polished raw anodized aluminum top. It has an ink capacity of approximately 50ml.\u003cbr\u003e\u003cbr\u003eYou can use the specific upper cap design to cleanly and directly fill your TWSBI Diamond 580, Classic, Mini, or Precision fountain pen, or simply unscrew the upper cap to fill any fountain pen from the inkwell itself.\u003c\/p\u003e\n\n\u003cp\u003eThe top of this Diamond 50 Inkwell is also interchangeable with the top of the TWSBI 70ml ink bottles.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":16834795601963,"sku":"TW-M7447690","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Inkwell-Diamond50-PolishedAL-1-sq.jpg?v=1755193689"},{"product_id":"twsbi-eco-fountain-pen-transparent-purple-special-edition","title":"TWSBI ECO Fountain Pen - Transparent Purple","description":"The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, this special edition ECO features a crystal clear acrylic barrel so you can see your ink level, and a translucent purple cap and piston knob. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib. This color is a limited production run.\u003cbr\u003e\u003cbr\u003eTWSBI’s belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":20610440626219,"sku":"TW-M7447640","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":20610440658987,"sku":"TW-M7447650","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":20610440691755,"sku":"TW-M7447660","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":20610440724523,"sku":"TW-M7447670","price":36.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":20610440757291,"sku":"TW-M7447680","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-ECO-Purple-OW-2.jpg?v=1756406899"},{"product_id":"twsbi-1791-sky-blue-18ml-bottled-ink-limited-edition","title":"TWSBI 1791 Sky Blue - 18ml Bottled Ink","description":"\u003cp\u003eA new limited fountain pen ink line from TWSBI! This frosted glass bottle contains 18ml of Sky Blue fountain pen ink.\u003c\/p\u003e\n\n\u003cp\u003eThe series name 1791 comes from a famous book written in 1791 in China, called \"The Dreams of the Red Chamber\". TWSBI picked names for each of these inks in Chinese from this book. In English, the names just describe the color of the ink, however, in Chinese, it comes from 6 famous buildings described in this book. \u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":30282011246635,"sku":"TW-M2531030","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-SkyBlue-BS-SwabText.jpg?v=1757082423"},{"product_id":"twsbi-1791-bottled-ink-gift-set","title":"TWSBI 1791 Combo Color 6-Pack (Limited Edition)","description":"\u003cp\u003eA limited fountain pen ink line from TWSBI! This 1791 bottled ink set contains the first six colors released from TWSBI, each set in an 18ml frosted glass bottle. Colors include Pink, Orange, Prairie Green, Emerald Green, Sky Blue, and Royal Purple.\u003c\/p\u003e\n\u003cp\u003eThe series name 1791 comes from a famous book written in 1791 in China, called \"The Dreams of the Red Chamber\". TWSBI picked names for each of these inks in Chinese from this book. In English, the names just describe the color of the ink, however, in Chinese, it comes from 6 famous buildings described in this book.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":30282026811435,"sku":"TW-M2531090","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/TWSBI-Ink-1791-Collection-12-sq.jpg?v=1757082568"},{"product_id":"twsbi-1791-emerald-green-18ml-bottled-ink-limited-edition","title":"TWSBI 1791 Emerald Green - 18ml Bottled Ink","description":"\u003cp\u003eA new limited fountain pen ink line from TWSBI! This frosted glass bottle contains 18ml of Emerald Green fountain pen ink.\u003c\/p\u003e\n\n\u003cp\u003eThe series name 1791 comes from a famous book written in 1791 in China, called \"The Dreams of the Red Chamber\". TWSBI picked names for each of these inks in Chinese from this book. In English, the names just describe the color of the ink, however, in Chinese, it comes from 6 famous buildings described in this book. \u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":30282042048555,"sku":"TW-M2531040","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-EmeraldGreen-BS-SwabText.jpg?v=1757082234"},{"product_id":"twsbi-1791-royal-purple-18ml-bottled-ink-limited-edition","title":"TWSBI 1791 Royal Purple - 18ml Bottled Ink","description":"\u003cp\u003eA new limited fountain pen ink line from TWSBI! This frosted glass bottle contains 18ml of Royal Purple fountain pen ink.\u003c\/p\u003e\n\n\u003cp\u003eThe series name 1791 comes from a famous book written in 1791 in China, called \"The Dreams of the Red Chamber\". TWSBI picked names for each of these inks in Chinese from this book. In English, the names just describe the color of the ink, however, in Chinese, it comes from 6 famous buildings described in this book. \u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":30282045915179,"sku":"TW-M2531050","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-RoyalPurple-BS-SwabText.jpg?v=1757082375"},{"product_id":"twsbi-1791-orange-18ml-bottled-ink-limited-edition","title":"TWSBI 1791 Orange - 18ml Bottled Ink","description":"\u003cp\u003eA new limited fountain pen ink line from TWSBI! This frosted glass bottle contains 18ml of Orange fountain pen ink.\u003c\/p\u003e\n\n\u003cp\u003eThe series name 1791 comes from a famous book written in 1791 in China, called \"The Dreams of the Red Chamber\". TWSBI picked names for each of these inks in Chinese from this book. In English, the names just describe the color of the ink, however, in Chinese, it comes from 6 famous buildings described in this book. \u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":30282049716267,"sku":"TW-M2531070","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-Orange-BS-SwabText.jpg?v=1757082316"},{"product_id":"twsbi-eco-t-fountain-pen-mint-blue-special-edition","title":"TWSBI ECO-T Fountain Pen - Mint Blue","description":"\u003cp\u003eThe TWSBI ECO-T fountain pen boasts an incredible value with its piston filling system and affordable price. This special edition features a crystal clear acrylic barrel so you can see your ink level, and a trendy solid pastel mint blue colored cap and piston knob. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib.\u003c\/p\u003e\n\u003cp\u003eThe ECO-T differs from the ECO in that it has a triangular grip section for ease of holding the pen, and triangular shaped cap and piston knob instead of hexagon.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra-Fine","offer_id":31409941577771,"sku":"TW-M7447520","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":31409941610539,"sku":"TW-M7447530","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":31409941643307,"sku":"TW-M7447540","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":31409941708843,"sku":"TW-M7447560","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-ECO-T-Mint-OW-2.jpg?v=1756407020"},{"product_id":"twsbi-black-70ml-bottled-ink","title":"TWSBI Black - 70ml Bottled Ink","description":"\u003cp\u003eThis frosted glass bottle contains 70ml of TWSBI Black fountain pen ink, and comes with a conical insert for easy pen filling.\u003c\/p\u003e\n\n\u003cp\u003eThe top of the TWSBI Diamond 50 Inkwell is also interchangeable with the top of these 70ml ink bottles, for another easy way to fill compatible pens.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":31410170396715,"sku":"TW-M2531160","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-70ml-Black-BS-SwabText.jpg?v=1757081982"},{"product_id":"twsbi-sapphire-blue-70ml-bottled-ink","title":"TWSBI Sapphire Blue - 70ml Bottled Ink","description":"\u003cp\u003eThis frosted glass bottle contains 70ml of TWSBI Sapphire Blue fountain pen ink, and comes with a conical insert for easy pen filling.\u003c\/p\u003e\n\n\u003cp\u003eThe top of the TWSBI Diamond 50 Inkwell is also interchangeable with the top of these 70ml ink bottles, for another easy way to fill compatible pens.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":31410177376299,"sku":"TW-M2531170","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-70ml-SapphireBlue-BS-SwabText.jpg?v=1757082015"},{"product_id":"twsbi-blue-black-70ml-bottled-ink","title":"TWSBI Blue-Black - 70ml Bottled Ink","description":"\u003cp\u003eThis frosted glass bottle contains 70ml of TWSBI Blue-Black fountain pen ink, and comes with a conical insert for easy pen filling. This color is a modern iron gall and highly water-resistant.\u003c\/p\u003e\n\n\u003cp\u003eThe top of the TWSBI Diamond 50 Inkwell is also interchangeable with the top of these 70ml ink bottles, for another easy way to fill compatible pens.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":31410182848555,"sku":"TW-M2531190","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-70ml-BlueBlack-BS-SwabText.jpg?v=1757081988"},{"product_id":"twsbi-black-ink-sample","title":"TWSBI Black - Ink Sample","description":"\u003cp\u003e2ml sample of TWSBI Black fountain pen ink, in a labeled plastic vial.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":31410191499307,"sku":"IS-TW-M2531160","price":2.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-Black-SwabText-New.jpg?v=1757082051"},{"product_id":"twsbi-sapphire-blue-ink-sample","title":"TWSBI Sapphire Blue - Ink Sample","description":"\u003cp\u003e2ml sample of TWSBI Sapphire Blue fountain pen ink, in a labeled plastic vial.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":31410209128491,"sku":"IS-TW-M2531170","price":2.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-SapphireBlue-SwabText-New.jpg?v=1757082407"},{"product_id":"twsbi-blue-black-ink-sample","title":"TWSBI Blue-Black - Ink Sample","description":"\u003cp\u003e2ml sample of TWSBI Blue-Black fountain pen ink, in a labeled plastic vial. This color is iron gall and highly water-resistant.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":31410213879851,"sku":"IS-TW-M2531190","price":2.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/products\/TWSBI-BlueBlack-SwabText-New.jpg?v=1757082082"},{"product_id":"empty-bottle-twsbi-70ml","title":"Empty Bottle - TWSBI 70ml","description":"\u003cp\u003eEmpty TWSBI 70ml glass bottle, not cleaned. Includes the insert for easy filling.\u003cbr\u003e\u003cbr\u003eThe top of the TWSBI Diamond 50 Inkwell is also interchangeable with the top of these 70ml ink bottles, for another easy way to fill compatible pens.\u003c\/p\u003e\n\u003cp\u003eWe suggest using water (and ammonia or bleach if necessary) to give the bottle a thorough cleaning.\u003cbr\u003e\u003cbr\u003e The bottles are randomly selected based on their availability. The color shown in the picture is representative and will not necessarily be what you receive. We're unfortunately not able to honor any special color requests.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Default Title","offer_id":31438810677291,"sku":"EB-TW70","price":3.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2603\/2528\/files\/EmptyBottle-TWSBI-70ml-1-sq.jpg?v=1756921960"},{"product_id":"twsbi-eco-fountain-pen-white-rose-gold","title":"TWSBI ECO Fountain Pen - White RoseGold","description":"The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a solid white cap. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with rose gold trim and a rose gold-plated steel nib.\u003cbr\u003e\u003cbr\u003e TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. 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The clear demonstrator barrel allows you to see your ink color and remaining ink level. This special edition fountain pen has a deep teal blue aluminum grip section, cap ring, and piston knob. The aluminum is enhanced with a subtle matte finish, with circular engravings in the grip and cap area. It comes with a stainless steel nib and is presented in a modern clear display case.\u003c\/p\u003e\n\u003cp\u003eThe idea behind the TWSBI Diamond 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was TWSBI's goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.\u003cbr\u003e\u003cbr\u003e The TWSBI Diamond 580 is a classic fountain pen with a piston ink-filling system. 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