{"product_id":"robert-oster-school-blue-50ml-fountain-pen-ink","title":"Robert Oster School Blue Fountain Pen Ink — 50 mL","description":"\u003cp\u003eRobert Oster School Blue is a dark, practical blue with enough shading to keep it from becoming anonymous. In larger swabs and wetter lines it can lean slightly teal, while finer writing stays closer to a classic dark blue.\u003c\/p\u003e\u003cp\u003eIndependent testing shows visible shading, modest sheen under favorable conditions, average flow, and low water resistance. It dries at a moderate pace and remains easy to read across nib sizes, making it one of the more straightforward Robert Oster colors for daily use.\u003c\/p\u003e\u003ch3\u003eInk character\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e dark blue with a slight teal cast in wetter areas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShading:\u003c\/strong\u003e medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheen:\u003c\/strong\u003e slight, paper-dependent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShimmer:\u003c\/strong\u003e none\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e moderate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater resistance:\u003c\/strong\u003e low\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest suited to:\u003c\/strong\u003e everyday notes, study, correspondence, office writing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSchool Blue does exactly what a good everyday blue should do, but with enough tonal movement to remind you that the line came from a fountain pen rather than a disposable ballpoint.\u003c\/p\u003e","brand":"Robert Oster","offers":[{"title":"50 mL","offer_id":49127018823905,"sku":"RO-50843-50ML","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/8486\/6785\/files\/robert-oster-school-blue-fountain-pen-ink-swatch-card.png?v=1789523196","url":"https:\/\/bostonlore.com\/products\/robert-oster-school-blue-50ml-fountain-pen-ink","provider":"Boston Lore Studio","version":"1.0","type":"link"}