1. Installation method: first remove the handlebar of the original car and wash it; put the sleeve on the handlebar separately The handlebar should be exposed a little more than the handle; put on the auxiliary handle and fix the screw; fix the plug light with a Phillips screwdriver; after the installation is completed, please confirm the firmness of the handle and the auxiliary handle before riding! 2. Common problems: The position of the handlebar is not enough, adjust the screw of the finger puller and the brake to the middle, the auxiliary handle is not installed firmly and idling, first move the installation position of the finger pull and the brake in the middle to ensure that the auxiliary handle is fixed to the car when it is installed. Bundle. 3. Material: TPR rubber 4. Comfortable grip: The most natural TRP rubber material is used, which is comfortable to grip and has good wear resistance. The shock-absorbing meat ball design reduces vibration when riding. 5. Size: 13.8*2.2cm, inner diameter: 22.2mm