Original Canon drum for yellow toners from the C-EXV 16 and C-EXV 17 lines.
Just slot the toner into the drum then insert both of them, as one unit, into the printer and you're ready to produce professional quality prints.
This drum can last for up to 60,000 pages and will need to be replaced separately from the associated toners.
Please note this is a DRUM and not a toner.