SS Steering Wheel Maneuvering Knob Sea-DogA(R) Steering Wheel Maneuvering Knob fits our Sea-DogA(R) Steering Wheels (230111, 230212, 230115, 230211, 230215, 230313, and 230315). A steering knob attaches to the wheel for use in situations where maneuvering is excessive. It allows the driver to turn the steering wheel more quickly. Constructed of investment cast stainless steel for corrosion resistance this knob is designed for use with 1" x 3/4" oval tubing. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.