Usage Tips:Premium Materials - Trailer wiring harness consist of thickened PVC wire coating and high-quality copper wire, reinforced with black nylon net tube on the outermost layer,prolonging service life and resisting adverse weather conditions effectively. 4 Pin 5 Wire Trailer Wiring Harness - The style of trailer light connector is replacement for a 4-flat trailer wiring connector,5 wire 4 pin harness trailer connector are designed to matching industry standard 4-way flat socket. Perfect Size - Trailer light wire features 22ft male 4 flat wire and 2.5ft ground wiring provides enough length for flexible installation and trailer rewiring,simplifies installation process. Easy To Install - 4 pin 5 wire trailer wishbone wiring harness features color-coded wiring makes installation easy and used to connect left&right side taillights, brake lights and turn signals for rewiring your trailer. Wide Application - 4 pin 5 wire trailer side flat connector used for various trailers,provides a male plug for your trailer perfect for marine boat trailer,ATV trailer or other cargo utility trailer hitches,Please Note that trailers/tow trucks must have a 4-way plug,not compatible with motorcycle trailer wiring. Colour:As Shown Material:pvc Package Contents: 1 * Trailer Wiring Harness Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.