[Beautiful and durable] The steering wheel knob is made of crystal + ABS plastic + metal, taking into account durability and appearance, so that it can be used for a long time. [Simple Design]simple design and easy mounting and use.power handle has a lot of advantages such as easy to install safe touse and excellent fuction.It is smooth to a rotation by the ball bearing even if used to many hours. [User friendly]The vehicle steering spinner fits standard wheels with a depth of 26 mm~36 mm; If you have installed a steering wheel cover, the steering wheel knob may not fit anymore. [Quick Installation]Setting up this steering wheels accessories takes a total of several minutes. Fast and easy Installation. Lock Diameter: 30mm. If your steering wheel size fits this spinner, it will work very smoothly. [Comfortable Operation]reduce the resistance of steering to manipulate, no matter parking, small alley U-turn or back your car. steering wheel spinners is also able to reduce the driver’s uncomfortable because of the long time driving.