Features: Can increase torque of the steering wheel. Max rotated angle can up to 90 degree. With rubber band in the bayonet to protect your steering wheel. The elegant design upgrades the fashion of the car. The bearing-mounted power handle enables drivers to steer softly when driving slowly and parking cars. When turning car, it lessens the turning radius and helps beginners and lady drivers to drive safely and conveniently. Clip the ring on the steering wheel at a proper position. Screw the bolt up to fix the ring securely. For long-distance driving, the steering wheel is no longer heavy; it can be operated with one hand when making a call/drive back/on a complicated driving road. Specifications: Material: Alloy bolt + ABS knob with plating Color: Carbon Fiber Package Weight: approx. 200g Fitment: Universal fit for the steering wheel diameter below 32mm/1.26in Installation Method: 1. Use a screwdriver to loosen the booster ball to tighten the screw until the lower tightening position can be opened. 2. Put the inner lining in the proper position, clamp the booster ball on the steering wheel, and tighten the screw (do not tighten it first, rotate the booster ball properly, and tighten the screw if you feel that it is installed properly). Package Included: 1 x Steering Wheel Spinner Knob Notes: 1. If there is a steering wheel cover remove it before installation. 2. To ensure safely, check the bolt to ensure everything is tighten before using. .