1. Function: Gear shift knob helps with the leverage while shifting to help you shift quickly, comfortable hand touch feeling, making your shifting more smooth. 2. Universal Fitment: This gear shift knob is basically universal for most car on the market, comes with 3 adapters, M8 M10 M12, to ensure perfect fitment. 3. Decorate Car Interior: Gear shifter head is specially designed, crystal transparent bubble style, perfect decoration for your car interior, upgrade your driving comfort. 4. Direct Replacement: Round ball shift knob is a direct replacement for the original old or damaged shifter knob, no modification is required, easy to install. 5. Premium Acrylic: Crystal shift knob is made of high quality acrylic material, enhancing strength, wear resistant, and beautiful, perfectly match your original car.