Features: This part is made from quality materials to ensure reliable performance and long service-life. Gear shift is 8cm/3.15" length, with a 4.6cm/1.for 81" diameter opening that fits over gearshift. Adapters are also included for alternate sizes. The shift knobs with a comfortable smooth surface and great durable metal for touch, easy to clean, pen shake knob helps for better driving habits, improves the driving experience, and manipulative sense. Note:Manual transmission: The reverse gear needs to be lifted up and cannot be used. Automatic gear: The gear knob with buttons cannot be used. A perfect decoration for your car. Specifications: Material:Titanium Alloy Length:Approx.8cm/3.15in Diameter:Approx.4.6cm/1.81in Type:Ball Shape,1,2 Net Weight:130-208g 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. Package includes: 1x Gear Shift Knob 1x M8 Adapter 1x M10 Adapter 1x M12 Adapter