Please note the 98-99 Navigator has a different rocker panel cladding than the 00-02 models. This part will not fit 00-02 Navigator. Premium stainless steel with rubber seal guard. Predrilled holes on fender trims already.Use included self-tapping screws to fix the fender trims under the truck's fender wheel well as an accent. You might use your own screws for extra protection. Please send the return tracking info immediately.