This is 4-Pack compatible Konica Minolta bizhub C25 toner cartridges. Includes 1 each A0X5133 (black), A0X5433 / A0X5333 / A0X5233 (cyan / yellow / magenta). 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 money, but also provide a high quality product to ensure long term customer satisfaction.