Extremely durable: in order to mount it, you need to weld it to the surface. Perfect for back seat. Includes a seat mount and a metal base with a 9-inch diameter. The manually adjustable seat pedestal from LakeSport is crucial to delivering dynamic comfort and safety when boating. Ergonomic controls improve smooth and unshakeable action, and the seat mount allows for 360-degree rotation and a 3-degree tilt. This pedestal also features a heavy-duty, corrosion-resistant frame and a locking mechanism for extra stability. Technical Features: 1. 2 3/8” anodized satin post 2. Swaged and welded 3. 9-inch diameter aluminum base 4. Type A rating PROS🟢 Well made construction Seat mount included CONS🔴 The height adjustment is not the best