Refillable Ink Cartridges, Fountain Pen Ink, 0.38mm Blue Ink, 10ml Capacity + Transparent Barrel Design, for Writing & Drawing, Compatible with Fountain Pens, Ink Refills, Writing Supplies

Experience smooth, vibrant writing with 0.38mm blue ink cartridges. The 10ml capacity ensures long-lasting use, while the transparent barrel design allows easy ink level monitoring. Perfect for both writing and drawing, these ink refills are compatible with most fountain pens. Ideal for artists, writers, and professionals seeking high-quality, reliable ink supplies. Enhance your creative projects with consistent, sharp lines. A must-have for any writing or drawing supplies collection.