Constructan(TM) Tirol 13-Pin Trailer Plug 13-Pole Connector 12V Towbar Towing Caravan Truck Plug N Type Trailer End Plastic Suitable for 13-pin European standard trailer. Supplies power to your caravan, towing and truck. Brass pins in a durable housing. Plastic construction prevents rusting, enhances appearance and makes plug removal a snap. Waterproof for all road and weather conditions.