{"product_id":"twsbi-eco-black-fountain-pen","title":"TWSBI ECO Fountain Pen \/ Black","description":"\u003cp\u003eThe TWSBI ECO fountain pen is a true workhorse that’s made for everyone, from the beginner who just wants to try out fountain pens, all the way to seasoned fountain pen experts. Taking different design cues from the TWSBI Diamond 580, the ECO features a postable cap for maximum versatility. The pen also has an inner cap to ensure a perfect seal and prevent the nib from drying out when not in use.\u003c\/p\u003e\u003cp\u003ePlease note that the TWSBI ECO fountain pen is a piston filler, and only accepts \u003ca href=\"\/collections\/bottled-ink\"\u003ebottled ink, sold separately\u003c\/a\u003e.\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":48896918290585,"sku":"SQ6371774","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":48896918323353,"sku":"SQ2076474","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":48896918356121,"sku":"SQ7671711","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":48896918388889,"sku":"SQ5506188","price":36.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":48896918421657,"sku":"SQ3267547","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/4239\/9641\/files\/tempImageHf3Dpf.gif?v=1787036497","url":"https:\/\/shop.gentlemanstationer.com\/products\/twsbi-eco-black-fountain-pen","provider":"The Gentleman Stationer","version":"1.0","type":"link"}