This Premium 4-pack Toner Cartridge set is specifically designed for HP printers, with a page yield of 7500 black and 6000 for other colors. The cartridges come in cyan, yellow, magenta, and black, making them compatible with models such as MFP M479fdw, M479fdn, and M479dw. These toner cartridges offer high-quality prints through laser print technology, ensuring a reliable and efficient printing experience for users.