1、Wide Application: This 4 wire trailer lighting extension applies to any kind of trailers including marine boat trailer, horse trailer and other cargo trailers as long as it has a 4 way connection. 2、Plug and Play Design: No need to splice wires, this flexible 4‑pin trailer conversion cable comes to easily connect to your existing wiring to provide both vehicle and trailer connections. 3、Useful Cap: A sealing rubber cover for the van, female end connector, keep the terminals clean especially when you live in lake effect or heavy snow areas, sealed very well. 4、Durable Construction: 4 pin connector with fully jacketed wire harness, protects indoor cables from inclement weather and dangerous road conditions, rugged and for long life. 5、Coiled Design: Abrasion resistant coiled cord prevent dragging on the ground while providing flexibility during turns, stretchable coild wire keeps memory and effectively weatherproof. Item Type: Trailer Connector Material: Plastic Cable Can Be Stretched: Approx. 5ft/1.5m 1 x Trailer Connector