Formulated from a series of water soluble dyes in a superior shellac solutionFast-drying water resistant and transparent these inks can be used with a brush dip pen or airbrush. 26 Colours including Liquid Indian Ink - a water-based solution of traditional Chinese stick ink.All the colours are intermixable and you can overlay different colours for new effects and shades.Used by illustrators designers calligraphers and artists