This is 4-Pack compatible Canon LBP712 toner cartridges. Includes 1 each 0461C001 (black) 0459C001 (cyan) 0457C001 (magenta) 0455C001 (yellow). Each toner cartridge is manufactured to be comparative to the original in terms of quality and page yield. Extensive testing and R&D have enabled us to produce cartridges that will not only save you monebut also provide a high quality product to ensure long term customer satisfaction.