{"product_id":"twsbi-eco-jelly-yellow-fountain-pen","title":"TWSBI ECO Jelly Yellow Fountain Pen","description":"\u003ch2\u003eTWSBI ECO Jelly Yellow Piston Fountain Pen\u003c\/h2\u003e\n\u003cp\u003eThe TWSBI ECO Jelly Yellow Fountain Pen combines modern industrial demonstrator aesthetics with everyday writing reliability. Designed with a transparent resin barrel and an eye-catching translucent yellow cap and piston mechanism, this fountain pen allows you to admire the internal mechanics and monitor your ink level at a glance. Featuring an upgraded aluminium grip section, it delivers optimal ergonomic balance for students, writers, and artists tackling extensive note-taking and daily sketching sessions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Piston-Fill System:\u003c\/strong\u003e Internal high-capacity piston mechanism draws ink directly from bottles with a simple twist of the rear knob, eliminating the need for cartridges or converters.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eErgonomic Aluminium Grip:\u003c\/strong\u003e Precision-machined aluminium alloy grip section provides a cool, tactile hold and lowers the pen's centre of gravity to prevent finger strain during marathon writing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCrystal-Clear Resin Body:\u003c\/strong\u003e Tough, scratch-resistant acrylic barrel reveals ink agitation and volume while showcasing your favourite bottled fountain pen inks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCrafted Precision Nib:\u003c\/strong\u003e Tuned stainless steel nib delivers consistent capillary ink flow, providing a smooth, responsive tactile feedback on a variety of paper textures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUser-Serviceable Design:\u003c\/strong\u003e Includes a packaged mini maintenance wrench and silicone lubricant to facilitate effortless disassembly and piston seal maintenance for years of reliable use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e TWSBI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e ECO Jelly Yellow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e High-Grade Transparent Resin \/ Acrylic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrip Section:\u003c\/strong\u003e Lightweight Machined Aluminium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilling Mechanism:\u003c\/strong\u003e Integrated Piston Filler (Bottled Ink Only)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInk Capacity:\u003c\/strong\u003e Approximately 1.76 ml\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapping Mechanism:\u003c\/strong\u003e Screw Cap with Inner Seal to Prevent Ink Drying\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Weight:\u003c\/strong\u003e Approx. 21g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdl\u003e\n  \u003cdt\u003e\u003cstrong\u003eHow do I fill the TWSBI ECO fountain pen with ink?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eSubmerge the nib and feed fully into bottled ink, twist the rear piston knob counterclockwise to lower the plunger, and then slowly turn the knob clockwise to draw ink into the barrel reservoir. Wipe the grip and nib with a lint-free tissue.\u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eDoes this pen accept ink cartridges?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eNo, the TWSBI ECO utilises an integrated internal piston-filling mechanism engineered exclusively for bottled fountain pen ink, offering significantly higher ink capacity than standard international cartridges.\u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eHow do I maintain and lubricate the piston?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eEach pen comes complete with a custom disassembly wrench and silicone grease. When the piston turning resistance increases after extended use, gently unscrew the piston assembly with the wrench, apply a tiny dab of silicone grease to the rubber piston seal, and reassemble.\u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eWhat is the store order and customer support policy?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003eOur UK customer support team is available to assist with all product and order enquiries. Please contact us via our website contact form or directly email \u003ccode\u003eszjyx@outlook.com\u003c\/code\u003e. Orders can be cancelled for a full refund prior to dispatch, and all items are covered by our standard 14-day UK return policy.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"TWSBI","offers":[{"title":"EF","offer_id":56514721382772,"sku":"TWSBI-FP-ECO-YEL-1","price":46.67,"currency_code":"GBP","in_stock":true},{"title":"F","offer_id":56514721415540,"sku":"TWSBI-FP-ECO-YEL-2","price":46.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5727\/1412\/files\/1792465879783--978045362.jpg?v=1792657082","url":"https:\/\/www.ttpen.co.uk\/products\/twsbi-eco-jelly-yellow-fountain-pen","provider":"TTPEN UK","version":"1.0","type":"link"}