Car Boat Carbon Fiber Print Steering Wheel Power Handle Suicide Knob Product Name: Steering Wheel Knob; Color: Black, Gray, Silver Tone Material: Plastic,Metal; Dimension: Total Height:6.5cm/2.6 inchecs Package Content: 1 x Steering Wheel Knob Knob Size: 5.2cm/2inches Fixing Ring Inner Diameter: 3cm/1.2inches