Material: The car steel steering wheel booster is made of stainless steel and ABS, which is high strength, durable, not easy to break, high temperature resistance, can be used for a long time. Driving comfort: Ideal for people who drive a lot, do maneuvers regularly, or have arm or shoulder pain (surgery, seniors). The steering wheel button can relieve your pain and fatigue. With this driving aid, taking the wheel becomes a pleasure again. Easier to use: 360° rotatable. Reduce the steering resistance to handle, no matter parking, small U-turn driveway or backing up your car. It is easy to handle, even if you operate it with one hand in a congested space. No need to rush in an emergency. How to use: 1. Prepare a screwdriver. After unscrewing the screw, wrap the leather protective gasket on the steering wheel. If the diameter of the steering wheel is too large, you can use the gasket! 2. Fix the metal fastener on the steering wheel, and then use a screwdriver to close. Just tighten the