The product is a lot of 4 genuine Canon GPR-11 toner cartridges, including one each in black, yellow, cyan, and magenta colors. The toner is specifically designed for use with Canon printers, compatible with models such as ImageRunner C2620, C3200, and C3220. The unit type is drum, and the print technology utilized is a laser electrostatic transfer system. This set of toner cartridges is ideal for those seeking original and reliable printing supplies for their Canon printers.