50MM Deluxe Trailer Coupling Lock - Theft Deterrent Security Device Towball Deluxe Trailer Coupling LockSuits - Most 50MM CouplingsFinish - PowdercoatedSuppliedWith 2 KeysThese are used for locking onto a trailer coupling when it is not in use so thatthe trailer cannot be hitched up to by an unauthorised person.These are simply inserted onto the lip of the coupling and thenthe pin will go up into the coupling andlock intoplace.PleaseNote We Stock A Huge Variety Of SecurityItems , Product Code -SFYH6075DeliveryInformation