SS Steering Wheel Maneuvering Knob Sea-Dog Steering Wheel Maneuvering Knob fits our Sea-Dog 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.