Description: Screw this adapter dust protector holder onto your trailer, after parking the trailer, plug in the pin plug, 13 pin adapter or 7-13 clip the adapter to the socket. This trailer adapter protective mount can be used on bike racks, mobile homes or trailers for horses, and it is also waterproof and can also protect against dust. Trailer plug holder with locking nose, lock the adapter firmly, easy to install, use this bracket to protect the copper contacts of the plug from damage. You can screw the trailer adapter holder to the tow bar, Really practical and useful trailer accessories, a good choice for you. Made of high quality metal and ABS, this trailer connector holder is fireproof, high temperature resistant, sturdy, not easy to break. Specification: Material: ABS Color: black Size chart: 95 x 37 mm/3.74 x 1.46 inch Package includes: 1 piece trailer plug holder Note: 1. Please allow slight error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. I wish you a wonderful online shopping experience!