Inkjetcorner 3 Pack Big Black Compatible Ink Cartridge Replacement for PGI-250PGBK XL Works with MX922 MG5620 MG5420 MG5422 MG5520 MG6420 MG5522 MG7120 MG7520 MG6620 iX6820 3 x Compatible Black Inkjet Cartridges are Brand New Compatible Non-OEM 2 Year shelf life Chip is installed on the cartridge. Will Accurately Display Ink Levels