The 11 Ft. Aluminum Market Umbrella, pulley lift without tilt, is manufactured using the best and most resilient materials available. The half-inch thick fiberglass ribs allow the frame to bend and flex easily in windy conditions, while the durable aluminum center pole, and maintenance free resin and stainless steel parts ensure this umbrella will provide years of worry-free shade. 9 oz. 100% marine grade, solution dyed acrylic fabrics, manufactured with only the highest quality raw materials and the most rigorous quality-assurance procedures. Available in multiple frame finishes, the Monterey Aluminum Market Umbrella is designed to allow you to bring commercial durability home to your cherished outdoor living space.