Deluxe 3/4" span coupler lever or trailer door latch lock. Also is a direct replacement lock for Lock-On Guard Fuel Cap Cover. Features a zinc alloy and rubber bumper to protect againt abrasion and rattling. Patented 1/4 turn technology that cannot be false locked. Internal O-ring keeps out water, grim and dirt. Rubber cap protects keyhole from water, grime and dirt. Spring loaded Type A key, 7 pin, high security key. Resists attempted drill outs. Rugged and durable, the key will not bend or break. Lifetime manufacturer's warranty.