Car steering wheel booster 360-degree rotating steering wheel knob ball effort-saving one-handed steering boostersteering wheel boosterfeature:Made of plastic material with metal bearings for durability and flexibility.The 360-degree rotating connection part improves the convenience and safety of driving. Make long-distance driving easier.It can reduce the turning radius and help novice and female drivers to drive safely and conveniently when turning.It is compatible with all types of cars and vehicles such as sedans, sedans, trucks, SUVs and more.The spherical design with non-slip surface is comfortable to hold. Elegant appearance design makes your car more fashionableProduct material: PC*ABS*metal steel*siliconeInstallation method: 1 Take out the power ball 2 Fasten it to the position to be installed (according to personal preference) 3 Reinforce with screws 4 Installation is complete (Please try to see if the rotation is smooth and the fixation is firm)Product use: use the steering wheel to save effortMore labor-saving: One-handed operation, one-time completion, bid farewell to both hands, quickly turn the steering wheel, control at will, and turn more labor-savingSmooth rotation: Built-in metal bearings, 360-degree smooth rotation, refuse to get stuckNon-slip Silicone: High-quality silicone is not easy to slip. Power ball turns, steering is saferNOTE: For vehicles with power aist. It is only used at speeds below 20 km/h. Before driving each time, please confirm that the booster ball is in a fixed state. Hold the steering wheel with both hands while driving. This product cannot be used in an emergency