Feature 1Aluminum Alloy: Constructed with aluminum alloy material and mirror polished finish, the seat pedestal is rust resistant and robust, ensuring stability and longevity in harsh marine environments. 2Slide Design: The seat support is designed to slide forward or backward by 80mm even after the seat is fixed, allowing for flexible adjustment, can rotate 360 degrees with a knob to adapt to any viewing direction. 3Adjustable Height Range: The seat bracket's height is adjustable from 350mm to 500mm, with 7 fixed holes for different height settings to suit various preferences. 4Detachable Design: The seat fixing plate can be removed or fixed with a knob, offering flexibility. In rainy or sunny weather, you can detach the seat for guard, preventing damage caused by harsh conditions. 5Versatile Use: This adjustable seat support pedestal is suitable for any seat installation position, such as the driver seat of yachts, ship bridges, RV lounges, or reception areas. It provides versatility and convenience for various seating needs. Item Type: Boat Seat Pedestal Material: Aluminum alloy, polished with mirror finish to prevent rust Adjustable Height Range: Approx. 350-500mm / 13.78-19.69in, minimum 350mm / 13.78in, maximum 500mm / 19.69in (manual adjustable) Features: Height adjustable, sliding design for support plate, 7 height adjustment holes for different heights, detachable seat fixing plate for guard against harsh weather Usage: Applicable for any seat installation position, such as boat yacht pontoon, RV lounge area, or guest room Installation Instructions: Step 1: Wipe the desired installation location, drill 6 holes to secure the seat support road base to the floor and fasten it with screws Step 2: Attach the seat plate to the bottom center of your seat and secure with screws Step 3: Install the seat fixing plate on the support rod to adjust the height you need to complete Package List 1 x Boat Seat Pedestal (2Pcs Accessories) Note Installation requires drilling holes, we strongly recommend professional mechanics to assist in installation to ensure your best shopping experience.