4 Pack Replacing for Canon PGI-250XL, CLI-251XL (PGI-250XL: 1 Thick Black, CLI-251XL: 1 Cyan, 1 Magenta, 1 Yellow) Compatible With PIXMA IP7220, iX6820, MG5420, MG5422, MG5520, MG5522, MG6420, MX722, MX922 Series Printers. Replacement Ink Cartridge Not- OEM Product's , Compatibility For Canon PIXMA IP7220, iX6820, MG5420, MG5422, MG5520, MG5522, MG6420, MX722, MX922 Series Printers. Page Yield at 5% Coverage: PGI-250XL Black is 500 pages per cartridge; CLI-251XL: Cyan, Magenta, Yellow : Yields up to 330 Pages To Replace Ink Cartridges with part numbers (Include 4 Color): PGI-250XL: Lager Black; CLI-251XL: Cyan, Magenta, Yellow. All our items are certified with ISO 9001 and ISO 14001 , Generic. All products covered by a 100% satisfaction guarantee and 90 day warranty with ReInkCo.