Goplus Aluminum Patio 9ft Tilt Crank Umbrella Parasol Yard Garden Outdoor Beach Sun Shade Crank Light weight aluminum poles unscrew at middle for easy and compact storage This umbrella has air vent with crank and aluminum tilt Maximum sun protection UPF30+ and water repellant Can be mounted on stands or middle of table if holes available Pole material: aluminum;Cover material:195G Polyester;Pole Diameter:1.5"