Ratchet Sawtooth Design: can be adjusted with the steering wheel size, plus the steering wheel sleeve can also be used. The steering wheel lock is only effective at the three-crossing position of the steering wheel. Make sure that the width of your steering wheel three-crossing position is ≤7 cm. Otherwise it is not suitable for your car. Three-direction locking:According to the test, it takes 45 minutes to cut three-bars,This will give you enough response time and scare the thief,let them give up. Easily stored:easy to fit and remove in seconds,folds down to be easily stored,easy to store under the seat of your car. Lock beam sawtooth design: can be adjusted with the steering wheel size, plus the steering wheel sleeve can also be used. Alarm System:Alarm lock will continue to emit 25s 130 db alarm Sound,This will provides visual deterrent and another layer of protection for your vehcle, deterrent to car thieves.