This umbrella is perfect for enjoying a bit of shade all summer long and offers maximum wind durability. Supporting the 9-foot canopy are wood ribs. This umbrella has a traditional look that you'll enjoy for years. The 11 ft umbrella features a one-piece solid wood pole with a nylon hub the 9ft has a two-piece pole construction with a nylon hub. It also has a pulley lift mechanism with a pin that secures the canopy in its open position. This umbrella features stainless steel hardware that won't rust and a double wind vent canopy for maximum stability. The fabric of the canopy is Sunbrella which is a durable solution-dyed acrylic and has many color choices. The Sunbrella fabric carries a five-year warranty against fading. The 9-foot canopy is well-suited to shade a 42- to 54-inch dining table. For the FiberBuilt 9-ft. Commercial Grade Wood Market Umbrella we recommend a 45-pound umbrella stand if you are using it with a table. Use a 75-lb. stand if it will be freestanding or used in a particularly windy area. Search our wide selection of umbrella bases by visiting our Umbrella Stand" aisle or put this in your cart and appropriate bases will appear as add-on choices.About SunbrellaSunbrella 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 SunbrellaRegular 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. For more specifics on maintaining Sunbrella fabrics visit Sunbrella.com.Sunbrella fabrics have been tested to provide up to 98% UV protection depending on depth of color. Whites and lighter colored fabrics provide less protection than darker fabrics. This protective factor is inherent to the product and will not diminish through use or exposure to the sun. Sunbrella furniture and umbrella fabrics have been awarded the "Seal of Recommendation" by the Skin Cancer Foundation an international organization dedicated to the prevention of skin cancer. Beautiful and protective fabric is the hallmark of Sunbrella."