This 15 ft. double-sided patio umbrella is perfect for gatherings with family and friends. Your purchase comes with a durable umbrella base, cross base, and 2 sandbags and a cover cloth. It s important to weigh the base down while in use, ensuring stability (sand not included). Each sandbag needs to be filled with 100 to 180 lbs. of sand for optimal support User-Friendly Design: Enjoy hassle-free outdoor shade with our easy crank lift system for smooth opening and closing. This 15 ft. patio umbrella with base complements any patio furniture set perfectly High-Quality Fabric: The canopy of our double-sided outdoor umbrella is crafted from 100% polyester. It s waterproof, breathable, fade-resistant, UV protective, and easy to clean, ensuring it lasts through the seasons Durable Frame Construction: Built to last, this large umbrella features a powder-coated steel pole and 12 rust-proof ribs for enhanced durability. The pole diameter is 1.9 in. (48 mm), providing robust support against the elements Important Measurements: The umbrella pole has a diameter of 1.9 in. and the base pole is 2.1 in. If you plan to use it with your own dining table, ensure the umbrella hole is larger than 1.9 in. and the fixed hole is larger than 2.1 in. for a proper fit Dimensions and Care: Umbrella Size: 15 (L) x 9 (W) x 7.5 (H) Feet, Base Size: 27.6 in. L x 27.6 in. W x 5.9 in. H. For longevity, please close and secure the umbrella when not in use, especially during windy or rainy conditions.