ESTON Ink Cartridge For 564XL Black/Color Photosmart 7515 7520 7510 C6383 Printer (15 Pack) Easy to install and use with complete compatibility, outstanding performance Page yield:up to 800 pages per black cartridge and 750 pages per color cartridge (5% coverage) All product have ISO9001 and MSDS certificate approved, all products are backed by 1 years full refund or free exchange guarantee for any damaged