This is 4-Pack remanufactured/compatible Lexmark C544/ C546/ X543/ X544/ X546/ X548 toner cartridges. Includes 1 each C544X2KG (black), C544X2CG (cyan), C544X2MG (magenta), C544X2YG (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.