Boat Steering Wheel 14 Inch Aluminum With Sky Blue Vinyl Half Wrap, Horn Button, and Installation Adapter Made of aircraft standard 6061 aluminum with a high polished finish Smooth finger grooves provide a comfortable and secure grip Diamater: 13 3/4 Inch Dish Depth: 1 3/4 Inch Includes vinyl half wrap, horn button, installation adapter and mounting bolts Fits standard 3/4 inch tapered key way shafts