The product is a set of 2 black toner cartridges compatible with HP 201X CF400X LaserJet Pro MFP M277dw M277 M252dw printers. These cartridges are manufactured by My Cartridge and have a page output of 2,800 for black. They are equipped with chips and are compatible with various HP Color LaserJet Pro MFP models, including M277dw, M277n, M252dw, and M252n. These high-quality, compatible toner cartridges provide reliable and consistent printing results, making them an ideal choice for home or office use.