Features: The steering wheel power ball can lessen the turning radius and helps beginners and female drivers to drive safely and conveniently when turning. The bearing-mounted power handle enables drivers to steer softly when driving slowly and parking cars. Elegant appearance design upgrades fashion of your car. Durable construction for years of trouble free use. Compatible with most major of vehicles, customize your car with this car strengthener ball. Enhance convenience and safety for driving. Specification: Type: Steering Wheel Spinner Knob Material: Metal alloy, ABS, rubber Quantity: 1pc Item Color: Black Mounting Bracket Inner Dia.: 3.5-4cm / 1.4-1.6" Fit for: Universal, compatible with most cars / vehicles Size: 5.2*8*8cm / 2*3.1*3.1" (L*W*H) Net Weight: 0.115kg / 4.1oz Package Include: 1*Steering Wheel Spinner Knob