QINK 4Pk 950XL Black+951XL CYM Ink Cartridges Set for OfficeJet Pro 8100 8600 Printer Contents: 1*Black 950XL & 1*Cyan 951XL & 1*Magenta 951XL & 1*Yellow 951XL Remanufactured ink cartridge Page yield : Black Up to 2,300 pages at 5% coverage; Color Up to 1,500 pages at 5% coverage Suitable for : OfficeJet Pro 8100, 8600, 8600 Plus, 8600 Premium; Officejet Pro 8630; Officejet Pro 8640 ; Officejet Pro 8660; Officejet Pro 8615; Officejet Pro 8625;OfficeJet Pro 251dw ; OfficeJet Pro 276dw MFP; 100% Satisfaction Guaranteed. We stand behind every product we sel l and offer a 100% satisfaction guarantee for a full refund (excluding shipping costs) of the purchase price within 30 days. Defective cartridge can be exchanged within 90 days.