360 Steering Wheel Knob Ball Auto Spinner Knob Car Steeringbooster Silicone Power Steering Handle Ball Booster Strengthener 100% Brand new with high quality. 360 rotation, one-handed operation, experience driving pleasure. Provides quick and easy 360 degree steering control for increased manoeuvrability. Metal bearing, good toughness and high strength. The steering wheel is driven by the booster ball.Easy and labor saving. Specification Product Name: Steering wheel steering booster Color: Black/ Blue Total weight: about 76g Size: about 7.5*5.5cm Material: Silicone Specifications: Silicone material, no noise. Easy to install and remove. Universal design suitable for use with most steering wheels. 360 rotation, one-handed operation, experience driving pleasure. Package included: 1*Steering wheel booster ball Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Thanks for your understandings.