Suicide Knob Steering Wheel Spinner. Chrome Skull. How about this brand new brody for your favorite ride? It will fit on steering wheels to just over 1" OD. It is about 2 1/4" tall from the clamp lip. The skull is about 1 3/4" wide and 2" deep. Notice those brand new pads so you won't screw up your wheel? Different thickness too. The listing is for the assembly as shown.