【Durable & Sturdy】This wheel spinner knob is made of premium resin and metal alloy,which makes it feel silky and smooth and toughness for prolonged product life. 【Rotate freely & Effortless Driving】Free rotation after installation.The steering wheel ball could reduce the resistance of steering,reduce your pressure and fatigue during driving,and make driving easier. 【Fashion Looking & Easy-using】The steering wheel knob spinner with skull shape looks cool and fashion, Additionally,let the driver turn more smoothly, turn around faster, and improve the interior of your car with a smooth awesome appearance.It only takes a few minutes to tighten the screws and nuts by hand or with a wrench. 【Wide Application】This steering knob has a wide range of applications and is compatible with most automotive steering wheels with a thickness of 1.2 inches. It also provides an internal rubber ring to protect and adjust the steering wheel. 【Customer Service】If you have any questions about the product, please tell us in time and we will provide you with advice. Features This skull theme steering wheel knob is made of good resin and high quality metal bottom. We also provide you an inner rubber ring to protect the surface of your steering wheel. Most importantly, it is easy to install after which you can get a more convenient and safer driving experience.SpecificationMaterial: Resin and aluminum alloy Color: Size of item: 85mm x 61mm/3.3" x 2.4" (Length * Width) Size of inner ring diameter: 1.2 inchesFitment: Universal Manual and automatic vehicles, such as SUV, saloon car, sedan, truck and van etc. Installation Process 1.Remove the hexagon screw from holder and choose a suitable location 2.Align the holes of the fixed shaft3.Put the screw into the screw hole and tighten the head of the booster 4.If you suppose it is not firm enough, please use a hexagon spanner to make it firmer Package including 1 pcs * steering wheel spinner 1 pcs* rubber ring