This heavy-duty top seller 11 ft. commercial grade umbrella offers all the features a residential or commercial owner demand with a robust, commercial grade aluminum frame. The 2-section aluminum pole with a 0.08 in. wall thickness and fiberglass rib framework has superior stability and is perfect for demanding commercial conditions. The strong aluminum pole frame is matched by a simple and efficient pulley lift system, which compliments a resilient and easy to use umbrella. This umbrella also features Sunbrella fabrics, which are built on a foundation of solution-dyed acrylic yarn, the most resilient and solid material for prolonged sun exposure, to offer even longer color retention rating than competing material sources. One of the key benefits to this umbrella is a 3-year warranty on the fiberglass ribs as opposed to your standard 1-year warranty. This umbrella will hold up against anything you throw at it, it has the benefits of both worlds.