KDL Shift Knob Car Gear Gum Resin Grimace Skull - Great Halloween gift Material: made of gum resin, feel good Exterior Size:3.54x3.14 inch Size: inner diameter 15.4 mm/0.46 inch, three plastic adapters with no threads fits to different size of shifter, tools included Easy DIY installation,conveniently replace existing gear shift knob Before buying, make sure that the product is suitable for your car;If you have any questions, please at any time contact us, we are glad to serve you Exterior