100% Satisfaction Guarantee! One Year Warranty! Brand: Generic Brand / Remanufactured Model No: Ink Cartridge 970XL 971XL Color Type: Black, Cyan, Magenta, Yellow Shelf Life: 2 Years Page Yield: 9200 Pages for 970XL BK, 6600 Pages for 971XL C 971XL M 971XL Y For Use With HP Officejet Pro X451dw X451dn X476dw X476dn X576dw X551dw Printers 100% Compatible High Quality, Meet Or Exceed OEM Requirement Our products are certified with ISO 9001 and ISO 14001. If you are not 100% satisfied with your purchase, you can return your order to us within 30 days for a full refund or free replacement, return shipping is absolutely Free.