Features: 1.Function: The adapter connector cable converts a 7 way round socket to a 4 way flat socket for easily syncing trailer signals and taillights without rewiring. 2.Material: The plug adopts copper pin contacts for better electrical conductivity. Plastic shell, waterproof, wear resistant, flame retardant, cold resistant, extremely durable. 3.Fine Workmanship: With a total length of 0.9m, professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. 4.Application: Widely used in most towing vehicles including trailer, caravans, tow trailers, semi trailers, motorhomes, etc. with US 7 to 4 pin trailer adapter. 5.Easy Operation: Easy to install, no need to rewire, plug and play, very convenient. Easy to install the adapter cable between trailer cord and trailer plug. Specification: Item Type: 7 Way Trailer Connector Cable Material: ABS, PVC, copper Cable Length: Approx. 0.9m/35.43in Function: Converts a 7 way round socket to a 4 way flat socket for easily syncing trailer signals and taillights without rewiring Application: Widely used in most towing vehicles including trailer, caravans, tow trailers, semi trailers, motorhomes