Our MaxxHaul 7-Way RV Blade Connector Socket splices into vehicle wiring to provide a solid connection with a trailer plug. 7-blade connects turn signals, brakes, tail, reverse, brakes and auxiliary power can be interchanged with other 7-blade RV connectors. Made from commercial grade non-rusting plastic construction with rear grommet for weatherproofing. Features spring loaded dust cover keeps connector protected when not in use.