The Lexmark 50F1X0E Black Extra High Yield Toner Cartridge is designed for Lexmark printers, offering high-quality black printing with a print technology of laser. This toner cartridge is compatible with Lexmark printers and is ideal for those looking for reliable and consistent results. The open box weight of 1lb:5.8oz ensures that the product is securely packaged and ready to use, providing users with a cost-effective solution for their printing needs.