Starink: Deliver accurate professional sharp black, get reliable performance and impressive images on every prints printing life. | Package Contents: 1 Set, 950XL 951XL replacements (1 Black, 1 Cyan, 1 Magenta, 1 Yellow) for HP 950 951 | High Yield: 2,300 Pages per 950 xl Black Cartridge; 1,500 Pages per 951 xl Color Cartridge | High Compatibility: HP OfficeJet Pro 8100 8600 8610 8615 8620 8625 8630 8640 8660 251DW 276DW 271DW All-in-one Inkjet Printers | All products are manufactured strictly in accordance with ISO9001, ISO14001, CE, ROHS, MASD. Please confirm your printer model before placing your order.