The HP 57 C6657AN Tri-Color Inkjet Print Cartridge is a single unit ink cartridge designed for use with inkjet printers. It is compatible with HP printers and offers cyan, yellow, and magenta colors for high-quality printing. This thermal print technology ensures vibrant and long-lasting prints, making it an ideal choice for various printing needs. The HP 57 cartridge is reliable and efficient, providing consistent results with each use.