Description: Driving: The steering wheel spinner helps you keep control of the vehicle especially when you need to be responsive or precise, reduce the resistance of steering to manipulate, no matter parking, small alley U turn or back your car Fit for Most Vehicles and Steering Wheels: The knob fits most car, boat, tractor, forklift, mower and gives you the effortless control of your vehicle driving. Easy installation: Package Includes mounting screws and Wrench, Easy to mount, not easy to fall off High Quality: Made of ABS and iron material, durable and practical Applications: Recommended for truckers, the elderly, daily drivers, disabled or handicapped drivers, and People with Wrist Pain, with this driving aid, getting behind the wheel becomes a pleasure again. Specification: Material: ABS Plastic + Iron Size 9.3cmx6.3cmx3.5cm/3.66inchx2.48inchx1.38inch Package Includes: 1 Piece Steering Wheel Spinner Knob 1 Pair Screws 1 Piece Wrench Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!