Steering wheel spinner knob enhances motion involved in driving to provide an easier driving experience. Easily mounts to any vehicle steering wheel. Turn and maneuver your vehicle with ease. Instructions: 1. Unscrew the nut and separate the bottom and top part of the fastening mechanism. 2. Find a suitable place for fixing of the steering wheel and secure it by connecting both parts of the fastening mechanism and screwing the nut tight to the steering wheels’s body.