Springfield Marine Plug In Power Rise Air Ride Pedestal 22 1/4" 28 3/4" Adjustment. It may also be unlocked to rotate freely. The Pedestal has adjustable dimensions from 22-1/4" - 28-3/4". Provides a safe and stable place to sit. Fits into any 2-3/8" plug-in base (sold separately). Features of Springfield Marine 1300902 Plug In Power Rise Air Ride Pedestal 22 1/4" 28 3/4" Adjustment A.B.Y.C. Type: B Adjustable for control and comfort Can be locked in position to prevent rotating or unlocked to rotate freely Provides safe stable seating Package Contents: Springfield Marine 1300902 Plug In Power Rise Air Ride Pedestal 22 1/4" 28 3/4" Adjustment Springfield Marine 1300902: Plug In Power Rise Air Ride Pedestal 22 1/4" 28 3/4" Adjustment