The Springfield Marine Taper-Lock Removable Pedestal System allows a pedestal to be removed from its base and yet remain firmly in place when required. The slightly tapered Delrin bushing allows the pedestal to fit snugly and disengage as needed. Locking tab helps prevent the pedestal from turning and keeps it firmly secured. The Springfield Marine Taper-Lock 2-Piece Post Set includes the following parts:• Taper-Lock 13" anodized 2-3/8" post• Taper-Lock locking 2-3/8" swivel/seat mount AD RatedUse with any Taper-Lock base (sold separately). Locking tab helps prevent the pedestal from turning Includes 13"" post & locking 2-3/8"" swivel/seat mount Taper-Lock base is not included | Springfield Marine Taper-Lock Locking 13" Post Set