This ad is for a Mercedes Benz / SMART 5 pack of black plastic fasteners for the tempurature sensor. Brand new, never used. This is for many models of Mercedes and Smart Models.

Part # A000 995 1590
 

Please make sure to compare to the one you have/need with the catalog number above to make sure it is the item you need before you place an order as I don't know 100% what year range it should fit for.