This is 4-Pack compatible / remanufactured HP 126A toner cartridges. 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. Contains 1 each HP CE310A CE311A CE312A CE313A compatible toner cartridges