Introducing Diamine Forever Ink Hyper Green, the highly anticipated pigmented ink suitable for fountain pens, dip pens, and brushes. With finely suspended pigments, clogging is non-existent. With a range of waterproof colors, this ink is a must-have for artists and fountain pen enthusiasts. Made in England since 1864, Diamine’s ink is compatible with all brands of fountain pens. Take care to avoid drying out in your pen.