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 has a 0.08 inch wall thickness and is supported by a fiberglass rib framework, providing 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 durability compared to the standard one-year warranty. With this umbrella, you get the best of both worlds - a robust and reliable design that can withstand any challenge.- Commercial grade design for durability and reliability- 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, along with stainless steel hardware and pulleys, for long-lasting performance