1. Increased steering wheel resistance device, additional counterweight, automatic driving assistance, free hands. 2. The metal material has built-in high-performance magnets, stable and durable, and easy to install with one hand. 3. Copy by size, safe and stable. The steering wheel does not wobble when buckled. 4. 3D scanning of the original car, specially designed for special vehicles, stable and durable. 5. This product is not a safety device. Improper use of this product may result in damage or an accident. 6. The device cannot be used only on closed roads, not on public roads. Specification： Size: 10*7*3 cm material: metal Applicable models: 3/y/x/s Package includes: 1 steering wheel control booster