Endurance, 7 RV Blade Trailer End Plug, Typically Used With Large Trailers, RV & Industrial, Provides The Following Functions: Left/Right Turn, Taillight, Ground, Auxiliary, Electric Blade, Back Up/Reverse, Endurance Trailer Side Plug, Ergonomic Pistol Grip Feel, Ease In Connecting, Increased Durability & Weatherproofing, Tin Plated Terminals & Rear Grommet Seal, Trailer Side Mounting Bracket & Screws, Terminal Grease & A Ny-Tie, Corrosion Prevention, 3 Year Warranty.,