Neilsen 2.5M Trailer Extension Lead Cable Plug Socket Towing Wire Truck 7 Pin Suitable for trailers with a female plug on the front. This lead has a 7pin male socket on both ends to go from the front of a trailer to the car. Curly cable springs back for easy storage and prevents the cable dragging on the ground whilst towing. 2.5m long when fully stretched. 7 Pin plugs on both ends. Suitable for 12v or 24v.