This patio umbrella features a 9 foot octagonal canopy made of Olefin fabric and a powder-coated aluminum two-piece 1 1/2" pole. The fiberglass ribs and molded nylon joints, hubs, and end tips create a sturdy structure. The easy-to-use crank lift makes opening and closing easy to do. Incredible strength and flexibility to absorb strong wind and abuse. The base is sold separately.