This is 4-Pack compatible / remanufactured Samsung C2620 C2670 toner cartridges. Includes 1 each CLT-K505L (black) CLT-C505L / CLT-M505L / CLT-Y505L (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 monebut also provide a high quality product to ensure long term customer satisfaction.