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, provides superior stability. The umbrella also boasts a fiberglass rib framework for added durability. Its efficient pulley lift system makes 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. This umbrella offers the best of both worlds - strength and reliability.- 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, stainless steel hardware and pulleys for long-lasting performance