This Compatible Canon PGI-520Bk Cartridge is a lower cost version of the Canon PGI -520 Black Original Cartridge. Many Canon printers use this cartridge as the larger of two possible black cartridges; a list of compatible machines can be found above.This PGI-520 Compatible Cartridge contains an impressive 21ml of black ink and is colour matched to provide a print which should be indistinguishable from the original. As with all our cartridge, this PGI-520Bk includes VAT and free delivery.These cartridges are sold chipped and ready to use.