SPECIFICATIONS: Type: Gear Shift Knob Material: Carbon Fiber Color: Carbon Fiber Black Diameter: 35mm (1.4'') Height: 71mm (2.8'') Thread Size of Adapter: M8, M10, M12 INSTALLATION: 1. Remove the original factory gear knob from shifter. 2. Measure the diameter size of the screw rod. 3. Place the new knob over the shifter and fasten the correct adapter. 3. Make sure the knob is firmly attached. FEATURES: Comes with 3 thread adapters, M8, M10, M12. Easy to install, direct screw on installation. No modification required from stock application so long as thread adapter matches. Improves the look and style of your vehicle. FITMENT : Universal fit for most vehicles so long as threaded adapter matches your vehicle. PACKAGE INCLUDED: 1 x Shift Knob 3 x Adapters