This is the Original Left Mirror Cover Cap.
This is a used item, see photo. It has a film on the outside, the varnish hasn't come off, the film is peeling off.
OEM part number: 8R0857527 / 560471
Fits:
Audi Q5 8R, Audi Q7 4L (09-16 Years)
Please ensure it is an item for your model, before buying!