This heavy duty 9 foot commercial grade umbrella by California Umbrella offers all the features a residential or commercial owner demands, with a robust commercial grade aluminum frame. The 2 section aluminum pole with a 0.08 inch 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 efficient push lift system that complements a resilient easy to use umbrella. One of the key benefits to this umbrella is a 3 year warranty on the fiberglass ribs as a opposed to your standard one year warranty. This umbrella will hold up against anything you throw at it; it has the benefits of both worlds.