This set includes five remanufactured ink cartridges for HP printers, featuring three black HP 45 (51645A) cartridges and two color HP 78 (C6578D) cartridges. Designed for standard yield, these cartridges provide professional-quality output suitable for both home and office use. By choosing remanufactured cartridges, you can maintain a full ink supply at a lower cost compared to original brand cartridges. All remanufactured cartridges are backed by a 2-year guarantee.