Taper-Lock(TM) Trac-Lock(TM) 2-3/8" Locking Seat Mount2-3/8" post mount with bushing for snug fit. Made of high-strength aluminum, with powder coat finish. Centrally located locking handle, easy to reach with left or right hand. Features: Rotates 360Adeg For use with 2-3/8" fixed height pedestals Post Adds 3/4" To Height Of Pedestal 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.