This Canon CL-641 Ink is a Tri-Colour cartridge which means that you only have to swap over 1 cartridge rather than 3. This cartridge will give you optimal colour reproduction with fast drying ink, and the end result will rival photography labs. The pigment ink will produce sharp and dark black text and lines. This cartridge can be known by the manufacturer’s code CL-641. This cartridge has an estimated yield of 180 pages. This pack contains 1 tri-colour cartridge.