[Beautiful and durable] The steering wheel knob is made of high-quality 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 26-36 mm or less; 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. Installation steps: 1. Unpack and unscrew the big screw with a screwdriver. 2. Align the holes of the fixed shaft, put a protective pad on it, and choose a suitable position for fixing. 3. Put the screw into the screw hole and align the hole on the head of the booster with the screw. 4. Screw in the head of the booster. 5. Tighten it with a screwdriver and finish the installation after fine-tuning. Features:U-turn, turn, long-term driving, one-handed operation without pressure, relieve muscle pain and fatigue driving. Tips:Put the suicide knob on steering wheel, and then follow the above picture and installation steps.Do not insert the pad if the steering wheel is too thick or steering wheel cover is installed.Must use spring washer which fuction as prevention loose. Package Including:1Pcs Steering Wheel Spinner