Remanufactured HP 51645A black ink cartridge, originally an HP 45 cartridge, has been thoroughly cleaned and refilled with high-quality pigment-based ink. This cartridge is designed for archival print life and color stability, ensuring vibrant and long-lasting prints. It has been inspected for quality and performance, backed by a 100% Quality Satisfaction Guarantee. Ideal for various HP printers, this remanufactured cartridge offers a reliable and economical printing solution.