Features: Quick release steering wheel knob spinners in black, well polished with smooth surfaces, providing you a comfortable and convenient using experience when driving. Anti-skidding.360 degree adjustable,bearing support.silence smoothly. Smoothly wide area silica gel.No voice when turning the steering wheel. Spurtar spinning wheel knob works great on most tractor,and gives you the effortless control of your vehicle driving. Easy to install:Just recessed into steering steel.no need other screws to fix. Specifications: Material:ABS Size:Approx.62x92mm/2.44x3.62in Net Weight:298g Suitable for steering wheels within 1 inch range, mainly used for machinery, heavy trucks, etc. Package Includes: 1x Steering Wheel Spinner Knobs note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.