This Bass Pro Shops Power Pedestal uses a 3/4 pin system (threaded). The Power Pedestal rotates 360 and tilts 3. The pedestals height is adjustable from 22-1/2 to 29-1/4. The Power Pedestal meets ABYC standard H-31 Type B seating. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Pedestal Seat Base.
