The Bambrella Levante Square Bamboo Umbrella is Bambrella's premium collection, and there most popular umbrella, and can be used for both the commercial and high-end domestic markets. Double pulley and rope system ensures easy operation. Quality 304 stainless steel fittings. Sizes from 6.5?? to 11??. 5 Year guarantee on frames and hardware. BAMBRELLA PATIO AND MARKET UMBRELLAS, PAVILIONS & BASES Bambrella Bamboo Umbrellas have a natural beauty with a sleek modern design and most importantly will be perfect for your residence or business. All umbrellas are available in a wide variety of Spuncrylic Outdoor Fabrics. Wind tunnel tested from 56 up to 76 mph., for strength and durability, with a 5-year guarantee, easily replaceable parts, sets them apart from the competition. Warning: These umbrellas were tested in a wind tunnel in order to test the durability and strength of the pole and canopy and they were bolted and secured to the ground. Do not leave any umbrella in the open position in winds in excess of 20mph, without being fitted and bolted to the ground by licensed contractor. Always close your umbrella when not in use! Why is Bambrella is good choice?