The Master Lock 1/2 in. (13mm) and 5/8 in. (16mm) Stainless Steel Receiver Locks with Adjustable Coupler Latch Lock features 1/2 in. (13mm) and 5/8 in. (16mm) 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 water tight cap provides additional protection from moisture and dirt. The coupler latch lock adjusts from 9/16 in. (14mm) to 2-3/4 in. (70mm) for added application flexibility. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.