DescriptionDesigned for trailer, it can be used to connect power supply and truck. Made of premium material for long time and durable use. It has a simple design, but very practical in use, giving you a good using experience. Also can be a good gift choice for your friends, they will like it.Features-Color:Black -Material:Plastic -Size:8.50X7.30X4.00cm/3.34X2.87X1.57in Input: 12V - Durable plastic body and copper terminals provide excellent high temperature/abrasion resistance, extending the life of the 7-way trailer plug. - Ergonomic and user-friendly design can provide better and stronger grip. - Typically used on RV camping trailers, for towing RV travel trailers, interchangeable with any trailer side 7-way blade RV connector. - Can be used to connect taillights, reverse lights, turn signals, brake lights, trailer brakes and auxiliary power. - Widely used on commercial vehicles, semi-trailers, trailers. Practical for drivers.