The T3 features a triple plated chrome finish and hardened steel or a rugged epoxy powder coated finish for unmatched durability and corrosion protection (in red, blue or black) each 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. * The 5/8" pin fits all Class III, IV and V receiver hitches * O ring keeps water, grime and dirt out of locking mechanism to ensure years of use * Protective rubber cap protects keyhole from water, grime and dirt * Strongest locking pin on the market * 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.