As always, Birdsall Marine strives to give our customers top quality products. Our Steering Wheel Knob is a prime example of this. Our knob is CNC machined from solid 6061-T6 Billet. It is then given a clear bright dip anodized finish to protect it from the elements. Delrin bushings are used to give it a snug, smooth feel. The mounting bolt is 316 stainless steel, recessed behind a plastic cover. Great for maneuvering at dockside or the open sea.