This is 4-Pack compatible Ricoh SP C830, C831 toner cartridges. Includes 1 each 821181 (black), 821184 / 821183 / 821182 (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.