The 4-Way Flat Trailer Wiring Connector with 12 in. Vehicle Socket and 12 in. Trailer Plug is the quickest and easiest way to make electrical connections between your vehicle and trailer when towing. The 4-way flat connecter set provides a 4-way flat (trailer end) and 4-way flat (vehicle end) with 12 in. of 18-gauge bonded wire that provide stop, turn and tail lights. Features an ergonomic, durable plastic construction that is corrosion resistant to withstand extreme weather. For the safest towing, ensure all functions are properly equipped.