Using recycled Canon brand units the remanufactured PG-50 / CL-51 black and tri-colour cartridges offer you maximum compatibility with your Canon printer. Included in this value pack are two remanufactured cartridges, one black PG50 (28ml) and one tri-colour CL-51 (24ml) that provide you with excellent value for money and longer lasting ink and deliver a cheaper cost-per-print.The remanufactured PG-50 / CL-51 ink cartridges will give you equable results to the original Canon brand providing you with high quality prints with professional results every time.