Installation Method:
1. Use a screwdriver to loosen the booster ball to tighten the screw until the lower tightening position can be opened.
2. Put the inner lining in the proper position, clamp the booster ball on the steering wheel, and tighten the screw (do not tighten it first, rotate the booster ball properly, and tighten the screw if you feel that it is installed properly).