The HP 35A CB435A Black LaserJet Toner Cartridge Dual Pack is a genuine product manufactured by HP specifically for HP printers. This dual pack includes two black toner cartridges, providing a total of 2 units for printing. The cartridges are designed to offer high-quality printing results and are authentic OEM products from HP, ensuring compatibility and reliable performance. With no visible expiration dates, these black toner cartridges are ready for use and ensure a consistent and professional print color output.