NUINKO 4 Pack Replacement HP 564XL Ink Cartridge for HP PhotoSmart 7520 7510 7525 C6380 C310 C309a C310 C5380 D5460 C309g (4 Black) 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 4 Black