ALL COLORS Remanufactured Ink Cartridge Replacement for HP 88XL 1Set+1BK ( Black,Cyan,Magenta,Yellow , 5-Pack ) Alternative to OEM, comes with ONE YEAR WARRANTY from the date of purchase against manufacturer defects. Page Yield: Black 2400 Cyan Magenta Yellow 1210 pages at 5% coverage on Letter/A4 paper. This replacement Inkjet cartridge is built to ISO9001 and ISO14001 Factory Standards. Compatible with HP Officejet K550 series