Product Details + The fastest way to ensure your motor vehicle, boat trailer, aircraft, caravan, box trailer & camper trailer stays secure.Insurance company approved.Fits up to 29cm wide wheels.Hardened steel.Attaches in seconds.Weighs under 3kg.Stops wheel from rotating.Highly visible.Immobilises almost anything with wheels.Push button lock.Complete with three high security keys.NOTE: Integrated Lock.Other Details: Part No. Description Dimensions(mm) 180284 Stretchmaster Wheel Locks 900 x 450