{"product_id":"twsbi-eco-piston-filler-fountain-pen-cosmo-blue-onyx","title":"TWSBI ECO Piston Filler Fountain Pen – Cosmo Blue Onyx","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdition:\u003c\/strong\u003e Cosmo Blue Onyx — Premium Marbled Edition featuring swirls of nebula blue and green, ensuring no two pens are alike\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNib:\u003c\/strong\u003e \u003cstrong\u003eBlack Onyx Steel\u003c\/strong\u003e — Precision Jowo stainless steel nib with a black finish to perfectly match the trim\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilling Mechanism:\u003c\/strong\u003e Piston Filler — Internal piston draws ink directly into the barrel (approx. 1.76ml capacity)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInk Capacity:\u003c\/strong\u003e Massive — Holds nearly 4x more ink than a standard converter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e Crystal Clear — Transparent barrel contrasts beautifully with the unique marbled cap and piston knob\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Fully Serviceable — Includes wrench and silicone grease for home disassembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 139 mm capped, 168 mm posted — Hexagonal cap prevents rolling and posts securely\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Taiwan — Precision engineered for durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout the TWSBI ECO Piston Filler Fountain Pen – Cosmo Blue Onyx\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTWSBI ECO Piston Filler Fountain Pen – Cosmo Blue Onyx\u003c\/strong\u003e is a stunning \"Marbled Edition\" inspired by the depths of interstellar space. Unlike standard solid colors, this model features a mesmerizing \u003cstrong\u003eswirled resin\u003c\/strong\u003e on the cap and piston knob, blending deep \u003cstrong\u003eCosmic Blue\u003c\/strong\u003e with trails of \u003cstrong\u003eNebula Green\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBecause of the unique injection molding process used for the marbled resin, \u003cstrong\u003eno two pens are exactly alike\u003c\/strong\u003e—your pen will have its own distinct pattern. This cosmic aesthetic is grounded by the stealthy \u003cstrong\u003eOnyx Black plated trim\u003c\/strong\u003e and a matching black nib, creating a striking contrast.\u003c\/p\u003e\n\u003cp\u003eThe ECO (short for \"Economical\") is famous for bringing high-end \u003cstrong\u003episton filling mechanisms\u003c\/strong\u003e to an accessible price point. The built-in piston allows you to fill the pen directly from a bottle, holding a massive \u003cstrong\u003e1.76ml of ink\u003c\/strong\u003e. The crystal-clear barrel allows you to monitor your ink level while showing off the unique colorway.\u003c\/p\u003e\n\u003cp\u003eTrue to TWSBI’s philosophy of user empowerment, the pen arrives in a presentation box that includes a wrench and silicone grease, allowing you to fully disassemble and lubricate the mechanism yourself—ensuring your pen lasts a lifetime.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"EF","offer_id":53012743913783,"sku":"dbn1789851437849","price":40.15,"currency_code":"USD","in_stock":true},{"title":"F","offer_id":53012743946551,"sku":"mgw1789851437850","price":34.1,"currency_code":"USD","in_stock":true},{"title":"M","offer_id":53012743979319,"sku":"eoa1789851437851","price":39.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/3375\/9543\/files\/twsbi-eco-piston-filler-fountain-pen-cosmo-blue-onyx_1.png?v=1789851441","url":"https:\/\/sailingmodefit.shop\/products\/twsbi-eco-piston-filler-fountain-pen-cosmo-blue-onyx","provider":"My Store","version":"1.0","type":"link"}