1Wide Adaptation: Trailer connector is suitable for car sockets, which can be quickly connected to the trailer or other car equipment, convenient and practical. 2Dual Head Converter: With a single plug in, the Us to Eu trailer plug can be connected to different sizes of equipment at the same time, providing more options for use. 37 Pin Design: Trailer wiring adapter plug is convenient to convert Us plug to Eu plug to meet the needs of different countries and regions. 4Easy to Use: Trailer plug converter is very simple to use, plug and play, no additional tools or installation steps required, saving time and effort. 5Premium Material: Trailer wiring adapter plug is made of high grade material, which is high strength, sturdy and durable and has a long service life.