Function: 13 to 7 trailer adapter converts the car's 13-pin socket into a 7-pin socket to connect your car and trailer, and synchronize the trailer's running lights, easily solving the incompatibility problem between the car and the trailer. High Quality: The 13-pin to 7-pin towing adapter is made of high-quality plastic and copper. The housing is designed with a spring-loaded waterproof protective cover for all weather and roads for long-term use. The trailer plug adapter uses high-quality brass pins to ensure a secure and stable electrical connection between the plug and the trailer. Suitable for European standard trailers: The 7-pin to 13-pin trailer adapter is suitable for European standard trailers, trucks, motorhomes, caravans, tractors, etc. Easy to install: The 13-pin female to 7-pin male trailer adapter is plug and play and easy to install. Connect the plug side of the 13-pin adapter to the 13-pin car socket and turn the adapter clockwise until it clicks into place. Insert