The Swivl-Eze 238 Series Power Pedestal boasts easy plug-in assembly with the tightest, most secure fit. All parts are corrosion-resistant for long-lasting performance in marine environments. 2-3/8" dia. This Power Pedestal glides effortlessly on linear bearings. Adjustable height for personalized seating. Easy plug-in assembly Corrosion-resistant Smooth gliding on linear bearings Adjustable height