Using recycled Canon brand units the remanufactured PG-40 / CL-41 black and tri-colour cartridges offer you maximum compatibility with your Canon printer. Included in this value pack are two remanufactured cartridges: One black PG40 (16ml) and one tri-colour CL-41 (12ml) To provide you with excellent value for money and longer lasting ink. These PG-40 / CL-41 ink cartridges will give you equable results to the original Canon brand providing you with high quality prints with professional results every time.