Diamine Jet Black Ink Cartridges 18/pk

Diamine Jet Black Ink Cartridges. Each Diamine Ink is made with a gentle formula that is safe for all fountain pens. Diamine inks are a perfect choice for people who are looking for a smooth and quality ink. It is well appreciated by fountain pen enthusiast. Each Diamine Ink Cartridge is water-based, acid-free and non-toxic and comes 18 in a pack.