There"s no environment too harsh for the California Umbrella 7.5 ft. Commercial Grade Fiberglass Umbrella. Not only are the 8 sturdy ribs maked of ultra-strong, ultra-flexible fiberglass, but the pole is as well. Entirely constructed of highly durable fiberglass, this is the most weather-resistant frame on the market. A solid resin hub works to connect the pole and ribs. Suitable for use with many table styles, the bottom portion of the pole is adjustable for bar height and standard height use. The pole measures 1.5-inches diameter so it accommodates the umbrella holes of most patio tables. A 7.5-foot diameter canopy is perfect for use with bistro tables and small cafe tables. You have the choice of three grades of Sunbrella fabrics for your shade. All Sunbrella fabrics are the best you can buy, and these shades have a 5-year warranty against fading. Grade A fabrics are solution dyed canvas colors. Grade AA are solution dyed canvas colors in deep, rich tones, and grade AAA are textured fabrics, with the look and feel of linen. About Sunbrella Sunbrella has been the leader in performance fabrics for over 45 years. Impeccable quality, sophisticated styling and best-in-class warranties prove the new generation of Sunbrella offers more possibilities than ever. Sunbrella fabrics are breathable and water-repellant. If kept dry, they will not support the growth of mildew as natural fibers will. Beautiful and durable, Sunbrella is a name you can trust in your outdoor furniture. Cleaning and Caring for Sunbrella Regular maintenance is the best way to keep your Sunbrella fabrics looking good and delay deep, vigorous cleaning. Brush off dirt before it becomes embedded in the fabrics, and wipe up spills as soon as they occur. For light cleaning, use a mild soap and water solution and a sponge, allowing your cleaning solution to soak into the fabric. Rinse thoroughly to remove all soap residue and allow fabric to air dry.