Product name: high power booster ball Material: ABS+metal bearing Size: 60*25*70mm Applicable models: GM models Weight: 80g Color: black/red Know Before You Buy Problem: When installing the booster ball, the washer is a bit loose, but the washer is too thick to tighten the screw after use. what should I do? Answer: The washer of the booster ball can be cut at will. The two gaskets are longer and will overlap when used directly. It can be cut during use. Shorten the gasket to reduce the internal thickness of the booster ball ring. The cutting of the gasket can be based on the size of the steering wheel. Trim yourself. Question: I have an original booster with very light direction. Do I still need the Lord of the Rings to control the boost ball? Answer: Lord of the Rings controlling the car booster ball is not an ordinary directional booster ball. Booster ball is a kind of labor-saving ball that has been used for a long time on ordinary forklifts. Operational control performance of driving. After use, you can drive as much as you want. Let ordinary people have a higher level of driving skills and improve driving safety. Question: I am a XX model dedicated to a special car, which model should I choose? Answer: The special car is dedicated to our SEBTER booster ball. The sub-circumference is a three-gear circle of 10 cm / 11 cm / 12 cm. You only need to measure the position of the car steering wheel (the area with the A/B/C/D icon), and just select the Lord of the Rings to control the corresponding SKU option of the booster ball. The Lord of the Rings control booster ball is more suitable for installation, more perfect in appearance and safer to use. . Q: Is the product quality good? Answer: The product is made of all copper (environmentally friendly copper), and its life and strength are more than five times that of ordinary aluminum/zinc enhancers, and the product life is more than 5 years. The actual use time is longer. Question: Check the product description, there are 2 Lord of the Rings to control the car booster ball. is it necessary? Answer: The current car steering wheel has the function of automatically turning and driving straight. When the steering wheel is at a deflection angle, as long as the hand does not hold the steering wheel or the grip on the steering wheel is zero, driving the car will steer straight. Skilled drivers usually let the steering wheel turn on its own, thereby reducing the manipulation of the arm in the direction. If two booster balls are installed, the steering required to control driving can be increased at any time, and the distance of one-handed movement can be reduced. Novices are not used to driving. It is even more necessary to use the left hand to control the steering wheel and install two magic rings to control the car booster ball.