【Sun Protection & Sturdy Construction】Engineered with a 100% polyester canopy (UPF 50+) to block UV rays, and paired with a heavy-duty powder-coated steel frame for rust-resistant durability. Twelve reinforced steel ribs prevent tipping in winds up to 35 mph, while the double-sided design delivers 15 x 9 ft shade coverage. 【Double the Shade, Double the Style】The Kindura unique double-sided design provides twice the shade of a traditional patio umbrella, creating a cool and inviting oasis for your family and friends. Choose from a variety of stylish colors to complement your outdoor décor. 【Effortless Operation for All-Day Enjoyment】Our user-friendly crank lift system allows you to easily open and close both canopies with minimal effort. Enjoy instant shade, precisely when and where you need it, without breaking a sweat. 【Outdoor Umbrella with Base Included】The outdoor pool umbrella comes equipped with a sturdy cross-shaped base and two sandbags, providing excellent stability even in windy conditions. You can easily fill the sandbags with sand for added weight, ensuring your umbrella stays securely in place while you relax outdoors. However, it is recommended to close the umbrella in windy weather. (Note: Sand is not included. For optimal stability, please fill each sandbag with at least 100 lbs of sand.) 【Unrivaled Shade Coverage for Ultimate Comfort】Enjoy expansive shade for your entire patio or deck with our massive 15x9 ft rectangular double-sided canopy. Perfect for large gatherings, outdoor dining, or simply relaxing in luxurious comfort. Kingdura 15ft Large Patio Umbrell, Double-Sided Rectangle Outdoor Table Umbrella with Base Included, 12 Reinforced Ribs, Crank Lift for Market Pool Deck Backyard