This BULLDOG DM Hitch Lock is suitable for Alko and Albe hitch heads up to 92mm wide and is quick and easy to both fit and store thanks to its compact design. Manufactured from mild steel, the 3mm thick top box fully encases the hitch head, and the 4mm thick steel bottom channel covers all fixings. It has a highly visible red powder coated finish and utilises the Bulldog Super Lock Bolt case hardened steel locking pin which is both drill and pick resistant. It has a dummy ring to ensure restricted access to the towing point and is Secured by Design approved. It comes complete with 2 keys and a 5 year guarantee.