The Trimax TAR300 5/8" pin locking receiver pin with an anti-rattle pin and features a chrome finish and hardened steel. Provides instant security for your camper, boat or trailer by securing your vehicle receiver hitch. Features patented 1/4 turn technology that cannot be false locked. A 5/8" pin fits all 2" Class III, IV and V receiver hitches. Featuring a premium chrome finish. Includes 2 keys and wrench for installation. Receiver pin easily adjusts for tight fit. Has a O ring to keep water, grime and dirt out of locking mechanism to ensure years of use. Protective rubber cap protects keyhole from water, grime and dirt. Type A key which is a spring loaded, 7 pin, high security key. Resists attempted drill outs. Rugged and durable, the key will not bend or break.