■Can be mounted on the steering wheel of most cars and commercial vehicles, regardless of the thickness of the steering wheel, it can be installed on most passenger and commercial vehicles.The inner diameter of the steering wheel can be mounted is 9.4 - 15.0 inches (2The center of the handle (horn part) may not be able to be attached to a convex handle. ■ Conspicuous color give up before breaking the window glass. Not silver or black to match the car interior, you can use the prominent color to prevent vehicle theft. ■ Prevents relay attacks: An analog treatment method that prevents crimes caused by relay attacks (*) aiming for smart keys that are frequently activated. Relay attack is a crime that steals key information by aiming at weak radio waves coming out of the smart key.