This best-selling 11-foot commercial grade umbrella is designed to meet the demands of both residential and commercial owners. Its heavy-duty aluminum frame ensures durability, while the two-section aluminum pole with a 0.08 inch wall thickness and fiberglass rib framework provides superior stability, making it ideal for challenging commercial conditions. The umbrella features a simple and efficient pulley lift system, making it easy to use. One standout feature is the three-year warranty on the fiberglass ribs, which is longer than the standard one-year warranty. With this umbrella, you get the best of both worlds - a robust and reliable design that can withstand anything you throw at it.- 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, ensure long-lasting performance