This is 4-Pack compatible Xerox VersaLink C400 / C405 toner cartridges. Includes 1 each 106R03524 (black) 106R03526 (cyan) 106R03527 (magenta) 106R03525 (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.