The Canon GPR-58 GPR58 Toner Cartridge is a genuine/original product by Canon specifically designed for Canon printers. It weighs 1 lb and 0.6 oz (Black) and 13.1oz (Magenta), making it lightweight and easy to handle. This toner cartridge is compatible with Canon printers and is a reliable choice for high-quality printing results. Its weight and model number make it easily identifiable and manageable for users looking to replenish their printer supplies.