{"product_id":"guppy","title":"Guppy","description":"\u003cp\u003eGuppy is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. The 60mL volume will provide approximately 75 standard converter refills assuming a 0.8mL draw. \u003c\/p\u003e","brand":"Fountain Pen Ink","offers":[{"title":"Default Title","offer_id":44515586769138,"sku":"PN100460","price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1237\/1088\/files\/Guppy.jpg?v=1692033069","url":"https:\/\/www.birminghampens.mom\/products\/guppy","provider":"Birmingham Pen Company","version":"1.0","type":"link"}