Fender Washer. Each package comes with a base that can be set within a drilled hole to serve as an anchor for the bolt. The most inexpensive but effective way to bring the engine bay of a vehicle to the show level. This Fender Washer Kit ideal to dress up for your Wide Body Kit, Front Bumpers, Rear Bumpers, Trunk, Hatch lids etc. washer is easy to remove and reinstall quickly. Rivet Gun not require for Installation. Remark: Please Check Dimensions Above to Decide Fitment. For For use with Holes 12mm-16mm Diameter. Blind Spot Mirrors. Blind Spot Mirrors help increase visibility when your side view mirrors does not show whats hidden in your vehicles blind spots. They affix easily using 3M Double Side Tape and once properly installed, can help to see vehicles when changing lanes or passing.