NUINKO 4 Pack Replacement Cartridges for HP 920XL Ink Cartridge CD975AN CD972AN CD973AN CD974AN for HP OfficeJet 6500 6500a 7500a 6500a Plus 6000 7000 Printers Brand: NUINKO For use with HP printers: Please verify your printer model for compatibility below Easy to install NUINKO products are covered by a 100% satisfaction guarantee and a 1 year warranty from product defects 1 Black 1 Cyan 1 Magenta 1 Yellow