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. 9' Black Aluminum Market Patio Umbrella, Pacifica Mocha 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. This umbrella will hold up against anything you throw at it; it has the benefits of both worlds.