1. Put the universal ball into the nut, then insert it into the socket on the back of the holder. Tighten the nut 2. Open the clip, fasten the bracket to the handlebar, and tighten the two screws on the clip 2. Open the lock on the back of the stand and press the open buttons on both sides of the holder 3. Lower the phone slightly so that it touches the close button in the middle of the product 4. Tighten the back lock