1Professional Adapter: The heavy duty trailer 13 pin to 7 pin connector is designed for 13 pin plug in automotive to dual 7 pin N and S sockets in trailer or caravan with stable connection. 2Plug and Play: The trailer 13 pin to twin 7 pin adapter adopts plug and play design, all you need to do is just insert into socket, twist and lock without changing any cable, fast and convenient. 3Wide Application: The trailer 13 pin to 7 pin converter can well work in cars with a 13 pin plug on the towbar, supplies ancillary charging circuits, fridge or other appliance. 4Excellent Performance: The trailer 13 pin to twin 7 pin adaptor allows vehicle and caravan, trailer electrics compatible when towing, delivering you more convenience. 5Waterproof Connector: The trailer 13 pin to twin 7 pin plug after extensive quality and safety test, with excellent waterproof performance, more secure in using.