The ultimate protection for your towable! Guard against trailer tow away theft with this universial-fit coupler lock. Durable steel frame fits around 1-7/8 in.,2 in. and 2-5/16 in. ball couplers, providing both a visible and mechanical theft deterrent. Designed for use when trailer is not in tow. Boasts integrated, weather resistant cover that keeps dirt and moisture out of keyway. Includes 2 keys. Limited lifetime warranty.