Lock Magnum Wheel Lock can be used to deter theft on almost anything with wheels. It fits most wheel types and sizes.This unique design allows ONE lock to secure many different wheel sizes. Fits 12″ to 20″ wheels. Just slide the lock together on the wheel to lock and use the key to open.Quick, easy to use lock leaves your Autos, SUVs, Trucks, Motorcycles, Utility and Boat Trailers, Tractors, Airplanes, Construction and Landscape equipment, Quads, Dirt Bikes and more… practically anything with wheels unable to roll. Now in use by many Police Departments, Parking Authorities, Airports, Meter Maids, Municipalities and others.