Belle Adjustable Pedestal - 13" to 17"Adjustable Post With 10" Round Base And Trac-Lock(TM) Seat Mount. Rotates 360Adeg, Easy Grip Handles. Fits Standard Boat Seats. Corrosion Resistant Powder Coat Finish.Rated ABYC Class H-31 B (Fishing Only) 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.