Hitch Hook-up Mirror Helps Driver Align to Ball Hitch. Use with Rv's & Gooseneck Trailers Universal bracket mounts on round and flat surfaces. Convex mirror for wider viewing angle. Pivots for adjustable angle. Easy to install, Use with RVS & Goosenecks. Helps Driver Align to Ball Hitch. Mirror, universal bracket, mounting hardware, and sight decals included.