5/8″, 16 mm, chrome, class iii/iv, extended length bent pin receiver lock, fits toyota tundra, ford f-150/f-250/f-350, gmc/chevy 2500/3500 & dodge trucks with heavy duty tow packages, includes the push to lock locking mechanism, easily used by pushing the lock body firmly onto the pin & removing the key, weather tough seal & water tight cap provides additional protection from moisture & dir, fits 5/8″, 16 mm, receiver openings, usable length of receiver pin is 3-1/2″, 89 mm, push to lock locking mechanism, push lock body onto pin firmly & remove key, swivel head design for easy access, weather tough seal protects locking mechanism, 10,000 lb load rating.