These highly pigmented India inks not only remain lightfast and permanent, but are also waterproof when dry. They adhere to nearly all surfaces and are non-clogging when used in pens. Inks can be diluted with water and used with brushes in traditional watercolor techniques or in dip pens, technical drawing pens, and airbrushes. Non-toxic. Not for fountain pens. 

All colors are brilliant and transparent, except black and white, which are opaque and have excellent covering power.