{"product_id":"blue-fountain-pen-cartridge","title":"Blue ink cartridges for fountain pens","description":"Keep your fountain pen flowing smoothly with these blue ink cartridges. Designed for reliable performance, they offer consistent ink flow for clean, vibrant writing. Perfect as a backup or replacement set, these cartridges ensure your pen is always ready for note-taking, journaling, or professional writing tasks. Supplied and curated by Swordslife.","brand":"Swordslife","offers":[{"title":"Default Title","offer_id":44314811531578,"sku":"Schreibwaren \u0026 Büro3160","price":3.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/9526\/5338\/products\/blue-fountain-pen-cartridge.jpg?v=1688981633","url":"https:\/\/swordslife.com\/en-es\/products\/blue-fountain-pen-cartridge","provider":"Swordslife","version":"1.0","type":"link"}