ESTON Re-Manufactured Ink Cartridge Replacement for HP 61XL 61 XL Ink for Envy 4500 4501 4502 4504 5530 5531 5535 High Yield (2 Black/1 Color,3-Pack) Package contents: 2 Black 61XL ,1 Tri-color 61XL (CH563WN CH564WN) 61XL page yield : Approx 600 pages per black / 450 pages per tri-color cartridge at 5% coverage 61XL work With: HP Envy 4500, 4502, 5530, 5534, 5535, 4501, 4503, 4504, 4505, 5531 5532 5539 OfficeJet 2620, 4630, 4632, 4634, 4635 DeskJet 3050, 3050A, 3051A, 3052A, 3056A, 3511, 3512, 3516 ,1000, 1510,1512,1010, 1055, 2540, 2547, 2548, 2549, 3510, 3054, 1050,1051, 2050,1056, 2050, 2510, 2512, 2514, 2541, 2542, 2543, 2544 ESTON remanufactred replacements HP 61 ink cartridges are easy to install and use with complete compatibility, outstanding performance All 61XL ink manufactured by ESTON come with ISO9001 and MSDS certificate approved, all products are backed by 1 years full refund or free exchange guarantee for any damaged