The 50mm Trailer Coupler Is A Heavy Duty Coupling Device Designed To Securely Connect Your Trailer To Your Vehicle. With A 50mm Ball Size; This Coupler Is Suitable For Various Trailers; Including Small Utility Trailers; Caravans; And Boat Trailers; With A Maximum Towing Capacity Of 2500 Kg. Unbraked Trailer Coupler; 50 Mm For Maximum Static Load Of 2500 Kg.