Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailer's electrical functions are, you need a solid connection to keep the power flowing and ensure safety on the road. CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. These 4-way flat connectors are designed to supply power for tail lights, turn signals and brake lights, as well as a ground connection. They feature durable rubber-molded construction and are each made with 12" of standard color-coded, bonded wire to easily splice into your vehicle's wiring system. This package includes both a vehicle-end and trailer-end connector and is compatible with all 2-wire vehicle systems.