1. 4-Way Flat connector to trailer side, it is a standard plug for most trailers, such as RV, truck. With a dust cover outside, waterproof, and dust-proof.
2. Custom connector for vehicle side, no need to cut any wires! Just plug into the original socket on your vehicle, then go!
3.Dust cover. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements.