Valuetoner Remanufactured Ink Cartridge Replacement for Hewlett Packard HP 56 & HP 57 C6656AN C6657AN (2 Black, 2 Tri-Color) 4 Pack Contents: HP 56 & HP 57 C6656AN C6657AN (2 Black, 2 Tri-Color) 4 Pack Color: Black, Tri-Color (Cyan, Magenta, Yellow) Page Yield: Up to 520 pages per black cartridge & 500 pages per tri-color cartridge (5% coverage) Printer Compatibility: Deskjet 450 5150 5550 5650 5850 9650 Digital Copier 410 Officejet 4105 4211 5505 6105 Photosmart 7150 7260 7350 7450 7550 7660 7755 7960 PSC 1110 1200 1310 2105 2210 2400 2405 2410 2420 2450 2510 2550 Printer Warranty: 1 year limited warranty