Description 7-pin trailer adapter connects the major vehicle and the additional trailer, and transfers the electronic signature from the vehicle to trailer. Brass contacts to prevent corrosion. Accepts standard 7-way RV trailer connector. Accepts wide range of wire gauges. Features - Color: Black. - Material: Plastic. - Socket Size: 10.5x7.2x7cm. - Item Type: Electrical Plug & Sockets. - Item Name: 7-Pin Trailer. - Input: 12V. - American Style 7 Pin Trailer Plug, widely applicable. - Pure copper points for good conductivity, and nickel-plated for more corrosion resistant. - Environmental protection plastic housing. - Waterproof sealed to prevent rain water. - With a safety lock to prevent moving the plug due to vibration.Package list: 1 x 7-Pin Trailer Socket