Features: 1.Standard American car, modified trailer plug, suitable for a wide range. 2.Pure copper contact point, good conductivity, the surface nickel, more resistant to corrosion. 3.Waterproof seal, to prevent rainy day water. 4.With a lock, to prevent the driving plug due to vibration off. 5.American seven-pin plug, is the standard car accessories, widely used in a variety of trailers and trailers all kinds of trailers. Specification: Features:_x000D_ _x000D_ Standard American car, modified trailer plug, suitable for a wide range. _x000D_ Pure copper contact point, good conductivity, the surface nickel, more resistant to corrosion. _x000D_ Environmentally friendly plastic shell. _x000D_ Waterproof seal, to prevent rainy day water. _x000D_ With a lock, to prevent the driving plug due to vibration off. _x000D_ American seven-pin plug, is the standard car accessories, widely used in a variety of trailers and trailers all kinds of trailers. _x000D_ _x000D_ Specifications: _x000D_ Material: PVC _x000D_ Voltage: 12V _x000D_ Applicable vehicles: for trailers, RVs _x000D_ Size: 12.0 * 8.0 * 5.5cm/4.7 * 3.2 *2.2in_x000D_ Package Weight: 246g/8.7oz_x000D_ _x000D_ Package List:_x000D_ 1 * Trailer Hitch Wiring Tow Harness PackageList: