Lovingly made in Australia by fountain pen enthusiasts, Blackstone inks are formulated from the highest quality ingredients, include no harmful additives, and are pH neutral.
This Blackstone CMYK Ink Mixing Set includes four inks made from pure cyan, magenta, yellow, and black dyes—the same colors used in color printing. Together, these inks can replace hundreds of bottles of different colored inks. Experiment with different ratios to form your ideal hue, or fill your pen with all the colors of the rainbow! Because you mix each shade yourself, you can make large batches of colors you use frequently and small samples of hues you use less often. These inks are made with water soluble dyes.
Blackstone ink bottles are made of Polypropylene, which is a durable, lightweight, and completely recyclable material. They resist breakage when dropped and make excellent reusable travel ink containers.