This 7-way RV blade replacement harness is designed to replace an existing 7-way plug on your trailer and supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery, reverse lights and brake lights, as well as a ground connection. It features color-coded wires for easy splicing into your trailer's wiring system. With a 10' cable and protective plastic sleeve, this harness is perfect for RV travel trailers, providing more than enough length to accommodate virtually any vehicle-trailer combination and maintaining a solid electrical connection in spite of the elements. This 7-way RV blade connector is a male-end plug, specifically designed for the trailer side of the connection.