Curt 7-Way RV Blade Connector Socket For Trailer Plug. Splices into vehicle wiring to provide a connection for a trailer plug. 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power. Interchangeable with other 7-way RV connectors. Concealed terminals help ensure a reliable connection. Spring-loaded dust cover keeps connector clean when not in use. 7-way RV blade connectors commonly used on RV travel trailers. Wires not included.