The Master Lock #2848DAT features 1/2 in (13 mm) and 5/8 in (16 mm) chrome receiver locks and stainless steel adjustable coupler latch lock. The receiver lock includes the Push to Lock™ locking mechanism, easily used by pushing the lock body firmly onto the pin and removing the key. The Weather Tough® seal and watertight cap provides additional protection from moisture and dirt. The coupler latch lock adjusts from 9/16 in (14 mm) to 2-3/4 in (70 mm) for added application flexibility. The limited lifetime warranty provides peace of mind from a brand you can trust.