The Pellebant 9 ft. x 11 ft. Double Top Cantilever Patio Umbrella with HDPE Base is a powerful, elegantly designed outdoor sunshade. The unique double-top construction enhances ventilation, reduces wind resistance and improves the umbrella's stability in strong winds. The cantilever design supports 360-degree rotation, providing all-around shade coverage and flexible adjustment of the shade angle to meet the needs of different time periods. The base is made of high-density polyethylene (HDPE), which is strong, durable, UV-resistant and corrosion-resistant. The base can be filled with water or sand to add weight and ensure the stability of the umbrella. Whether for home use or commercial locations, this umbrella provides flexible shade and rain protection for a variety of outdoor needs. Suitable for outdoor patios, decks, pools, gardens, restaurants, cafes, etc., providing comfortable shade and rain protection. Umbrella： Base： Umbrella： Base：