Two Sets: 2 Black 9396A , 2 Cyan 9391A , 2 Magenta 9392A , 2 Yellow 9393A (Total 8 Cartridges) Page Yield: 2, 350 Pages per Black and 1, 210 Pages for each Colour Cartridge @ 5% Coverage Rate Manufactured with highest quality and standards by an ISO, REACH, & CE certified factory with XL Chip to ensure best performance. For Use in Printer Models: Officejet Pro K550, K550dtn, K550dtwn, K550XIDTN, K5400, K5400dn, K5400dtn, K5400tn, K5456DN, K8600, K8600dn, L7000, L7480, L7500, L7550, L7555, L7580, L7590, L7600, L7650, L7680, L7681, L7700, L7710, L7750, L7780. PRINTOXE® Brand 100% Compatible. Shelf Life Exceeds 24 Months.