Shop Nilight 25 Feet 7 Way Trailer Wire Extension Cable Traditional SAE 14 Gauge 7 Conductor 100% Pure Copper Insulated Heavy Duty Wire Weatherproof for 7 Pin Blade RV Trailer Automotive in high quality, support 2 Years Warranty. Easily connect your trailer essential components including taillights, brakes, turn signals. The color-coding wires allow for quick identification and hassle-free installation, even for those with limited experience.