Features: 1.Made of sturdy acrylic material, which is durable and has a long service life for you. 2.The polished smooth surface allows you to get a comfortable grip and avoid injuries. 3.Equipped with 3 steel adapters (8MM, 10MM, 10MM), allowing you to better assemble your car. 4.The ball shape is cool, suitable for car interiors, and adds a beautiful appearance and class to your car. 5.Easy to install, which is very convenient for your use, and save time for you. Specification: Item Type: Gear Shift Knob Head_x000D_ Material: Acrylic_x000D_ Mounting Hole Size: M12x1.25_x000D_ Shift Head Diameter: Approx. 54mm / 2.1in_x000D_ Adapter: Approx. 8mm / 0.3in, approx. 10mm / 0.4in, approx. 10mm / 0.4in_x000D_ Applicable Models: General-purpose Vehicles (Manual Transmission Models, Partial Screw-type Automatic Transmission Models)