The MAG200 is made of high quality chrome plated machine hardened steel. Provides instant security for your camper, boat or trailer by securing your vehicle receiver hitch. Features a resettable combination lock. * The 5/8" pin fits all Class III, IV and V receiver hitches * Free protective lock head cover * Easy to read numbers * Durable non-corrosive lock mechanism * No key to lose or forget * Marine applications * LIFETIME WARRANTY