This best-selling 11-foot commercial grade umbrella is designed to meet the demands of both residential and commercial owners. It features a sturdy aluminum frame that can withstand tough commercial conditions. The two-section aluminum pole, with a 0.08 inch wall thickness, and fiberglass rib framework provide superior stability. The umbrella is equipped with a convenient pulley lift system for easy operation. What sets this umbrella apart is its three-year warranty on the fiberglass ribs, offering more protection compared to the standard one-year warranty. With its durability and versatility, this umbrella is built to withstand any challenge.- Commercial grade design for durability and long-lasting use- Extra-large 11 foot diameter canopy for ample shade coverage- Easy push-lift system for effortless opening and closing- 8 heavy duty fiberglass ribs for superior stability in windy conditions- Aluminum hub and housing, 2 section aluminum pole with over 2mm wall thickness for added strength and support