1)Prefilled Refillable Ink Cartridge Replacement for Canon PGI-250XL CLI-251XL Ink Cartridge 2)Include 5 Prefilled Ink Cartridges and 5 Bottles Inks (Not include Gray ) PGI-250 Black x 1pc,CLI-251 Black x 1, CLI-251 Cyan x 1pc, CLI-251 Magenta x 1pc,CLI-251 Yellow x 1pc PG- Black Ink x 100ml Black Ink x 100ml Cyan Ink x 100ml Magenta Ink x 100ml Yellow Ink x 100ml 3)The Ink Cartridges Come With Auto Reset Chips / Rechargeable Chips 4)The Ink Cartridge can be refilled again and again. 5) Compatible for printers : Canon PIXMA MX922, Canon PIXMA MG7520, Canon PIXMA MG5520 Canon PIXMA MG5420, Canon PIXMA MG7120, Canon PIXMA MG6320 Canon PIXMA MG6620, Canon PIXMA MG5620, Canon PIXMA IP7220 Canon PIXMA IX6820, Canon PIXMA IP8720, Canon PIXMA MG6420 Canon PIXMA MX722, Canon PIXMA MG5422, Canon PIXMA MG5522 (If your printer model is MG6320 MG7120 MG7520 IP8720, it needs individually pack of gray cartridges.)