Good Performance: The gear knob adapters are made of high-quality rubber material, with high wear resistance, corrosion resistance and strong durability. Update gear knob accessories: After buying the adapters, you can replace the old gear head accessories so that stabilize the gear head facilities. Variety options: We will provide 3 types of size 0.31inch,0.39inch,0.47inch(8mm,10mm,12mm) gear knob head screw accessories for you. Easy to install: The ABS shift knob retainers only take you a few minutes to manually replace with new accessories. Wide Application: Thread adapter is widely used in most gear shift knobs that use inserts, such as B078W3TR68,B08MJ6XJHX,B0863PFG3X,B07DWW1X6D,B07DWT9MGJ,B08636YQR5,B08D6DD31C,B078W4YZ2D,B08D6D88VQ,B08V935YCQ. Feature: Gear Handle knob thread replacement are made of high-quality rubber, with high wear resistance, corrosion resistance and strong durability. We will provide 3 types of 0.31inch,0.39inch,0.47inch(8mm,10mm,12mm). gear knob head screw accessories for you to choose. It only takes a few minutes to manually replace with new accessories. Specifications: Material: rubber Color: black Size: 0.31inch,0.39inch,0.47inch(8mm,10mm,12mm) Package Contents: 3 x Shift Knob Adapter Installation steps: 1. From one of the three black rubber adapter mating lever your size, and then mounted on the shift lever. 2. Put the new truck shift head into the shift lever, and finally close the cover and tighten it TIP: 1. If the three screw sizes are not suitable for your car, it is recommended that you can wrap tape around the gear lever, and then tighten it to solve this problem. 2. If you have any questions, please consult with lumson store before buying.