This multipack contains one of each cartridge from the HP 508X range including the black (CF360X), cyan (CF361X), magenta (CF363X) and yellow (CF362X). These remanufactured Hewlett Packard HP 508X toner cartridges utilise many of the parts from the originals to maintain print quality. The parts of the HP 508X that cannot be reused (or are too worn) are then replaced with high quality compatible components designed to emulate the performance of a brand new cartridge. The completed cartridges are then filled with a compatible toner designed to pass freely through the HP 508X and fuse at the closest temperature to that produced by you Hewlett Packard printer as possible.The HP 508X toner cartridges are compatible with the very same printers as the genuine article including the HP Colour LaserJet Enterprise M553dn.