This is 4-Pack compatible HP 204A toner cartridges. Includes 1 each CF510A (black), CF511A (cyan), CF513A (magenta), CF512A (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.