1. Easily Installation - There is no tool required to fix this steering knob onto steering weel. Just clip steering wheel spinner knob on the steering wheel directly. Easily removable and detachable. 2. Universal Fit - The steering wheel spinner is also boat steering wheel knob, and fits for Car Semi Truck Tractor Lawn Mower with thin steering wheel. 3. Handling Steering Wheel More Easily – It helps you to spin/turn the steering wheel of vehicles in some difficult driving conditions (U-turns, narrow space parking and slower lane-changing) easily by one hand. 4. Relieve your pain - This low profile steering wheel knob spinner is especially useful for the driver with pain in one arm, shoulder or back by reducing efforts for manipulating the steering wheel in the case of crowded-space parking, small alley U-turn or reversing your car. This Product can be directly buckled on the steering wheel of the car, and car be used after being buckled tightly. This product is suitable for most models on the market. This product can effectively help the driver control the steering wheel, suitable for a wide range of scenarios.