Heavy Duty Adjustable Aluminum Boat Seat Pedestal, 13 to 19 Inches, Swivel Base This heavy-duty adjustable aluminum boat seat pedestal is designed to provide enhanced comfort and stability during your time on the water ?. With an adjustable height range from 13 to 19 inches, it offers flexibility to suit different users and ensures that you can enjoy optimal views while seated. The seat pedestal is built with marine-grade aluminum alloy, giving it superior corrosion resistance and durability even in harsh environments ?. Its 2.9-inch diameter post and 8.58-inch wide base provide excellent load-bearing capacity and stability, ensuring a smooth experience even in rough waters. The easy-to-use swivel base allows 360-degree rotation, while the adjustable slider mechanism lets you move the seat forward and backward with minimal effort. Whether installed on a fishing boat, yacht, or speedboat, this versatile pedestal fits most standard boat seats, eliminating the need for adapters. Designed to withstand bumps from waves, this pedestal offers a comfortable, stable seating experience. Lightweight at just 8.9 lbs, it is easy to install, making it perfect for any marine vessel. Key Points: ?? Adjustable Height for Customized Comfort ? The seat height can be adjusted between 13 to 19 inches using a round knob, accommodating different user heights and expanding your view while seated ?. ? Heavy-Duty Marine-Grade Aluminum Construction ? Built from corrosion-resistant aluminum alloy, this pedestal withstands exposure to saltwater and ensures long-lasting use on any vessel ?. ? Swivel and Sliding Base for Flexibility ? The pedestal offers smooth 360-degree rotation, while the sliding handle allows front-to-back adjustments for precise positioning on the water ?. ?? Stable and Secure Design with Enlarged Base ? The 8.58-inch round base ensures stability, absorbing shocks from waves and keeping you comfortably seated even in rough waters ?. ? Compatible with Most Boat Seats and Easy Installation ? Designed to fit most boat seat brands without additional adapters, the lightweight 8.9 lb design makes it easy to install on yachts, fishing boats, and speedboats ?. (description exceeds maximum possible length)