This Fiberbuilt 7 1/2 foot hexagonal patio umbrella features a powder coated aluminum two piece 1 1/2 inch pole. Fiberglass ribs and molded nylon joints, hubs and end tips create sturdy structure. The market canopy style top is made of Olefin fabric. The easy to use crank lift makes opening and closing a breeze. Incredible strength and flexibility to absorb strong wind and abuse. Rust-free frame due to stainless steel and aluminum hardware with nylon parts.