Pilot Iroshizuku Ink Cartridge Bamboo Charcoal Take-sumi, Pack of 6 (IRF-6S-TAK)Pilot Japan have always manufactured their own inks, they are renowned for superior quality and offer a stunning spectrum of colour.Each ink name derives from the expressions of beautiful Japanese natural landscapes and plants, all of which contribute to the depth of each individual hue. Iroshizuku presents a wide range of colours in these water-based inks, meaning great choice for fountain pen users and artists alike. Now available in cartridge format - ideal for on the go! Colour: Bamboo Charcoal, Take-sumii. Pack of 6 cartridges.