The Master Lock® No.3895DAT features a trailer coupler lock, receiver lock and trailer coupler latch lock. The trailer coupler lock fits 1-7/8 in , 2 in and most 2-5/16 in couplers. 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. It fits both 1/2 in and 5/8 in receivers. The stainless steel coupler latch lock adjusts from 9/16 to 2-3/4 in for added application flexibility. The limited lifetime warranty provides peace of mind from a brand you can trust. Master Lock® Receiver and Trailer Coupler Lock, Combo, Stainless Steel