Canon C-EXV 16/17 cyan drum (original Canon)
Original Canon drum fro C-EXV 16 and C-EXV 17 toners. In order to use your toner it must be sat into a drum and then both inserted into the printer as one unit. It's actually the drum that does all the "work" while the toner is simply a container of coloured powder. This drum lasts for 60,000 pages and is replaced separately from the associated toners. Please note this is a DRUM and not a toner.