The product is a 3-pack *Black, cyan, magenta* toner cartridge set designed for use with HP printers. Specifically, it is compatible with models CF400X, CF401X, CF402X, and CF403X. The toner cartridges are multi-color, including cyan, yellow, magenta, and black, with a page output of 2,800 pages for black and 2,300 pages for color. The cartridges also come with chips for compatibility and are suitable for various HP Color LaserJet Pro printers such as M252n, M252dw, M264n, and M277dw. This product is a cost-effective and reliable option for printing high-quality documents and images on your HP printer.