VEVOR Boat Seat Pedestal, Forward & Backward Sliding Adjustment, Aluminum Alloy Boat Chair Base with Slide, 5-inch Sliding Travel, Waterproof & Rust-resistant, Fit 2-7/8 Inch Diameter Pedestal Post

Front/Back Sliding Adjustment: Easily adjust the boat seat pedestal with the handle to slide forward/backward. The 360° angle adjustment and knob lock ensure you find your ideal seating position, providing superior comfort and visibility. Aluminum Alloy Construction: Our adjustable boat seat pedestal is made from heavy-duty aluminum alloy, providing increased support and durability. The thickened aluminum resists deformation and the waterproof features avoid corrosion, making it great for outdoor and marine environments. Universal Installation:Pre-drilled holes on the adjustable boat seat base make it easy to attach to your deck. Just align the holes with the components and secure the base in place. Note: Stainless steel screws are required for installation (not included). For 2-7/8" Base Posts: Our adjustable boat seat mount is designed for 2-7/8" diameter base posts. It cannot be used alone and is recommended to be paired with the AP75305 base (not included). Widely Compatible: This versatile boat pedestal fits many types of boat seats, letting you enjoy water sports like fishing and boating on fishing boats, yachts, canoes, and more!