【Rugged Umbrella Base Included】This double-sided patio umbrella comes with a durable umbrella base, so you do not need to buy it separately. In addition, this umbrella stand includes a metal frame and two sandbags (sand not included), which is easy to assemble with clear instruction. Each sand bag can be filling with 80 lbs sand to keep the umbrella stable. 【Large Patio Umbrella】This 15 ft patio umbrella with base features a double-sided design, which gives you maximum shelter that brings you double shades for your outside enjoyment. Additionally, this patio umbrella with large shade is great for garden, backyard, poolside and beach. 【Durable Structure】This frame of this patio umbrella is made of thick steel with powder coating, which is anti-rust and great for outdoor use. Moreover, 12 steel ribs provide optimal support for the large double-sided canopy. Even better, safe latch design for better-fixed canopy. 【High Quality Polyester Canopy】The canopy is made of high quality 180 g polyester fabric, which is fade-resistant, weather-resistant and durable enough for outdoor use. In addition, the canopy with premium material is great for UV protection and works well for water resistant. Three wind vents on top to allow air flowing and keep stability 【Crank Handle Design】Patio umbrella easily opens and closes with crank handle operation 【Package Included】Comes with one patio umbrella, cross base, two 300 D Oxford sand bags, polyester base cover and instruction. Note: You need to put some sand when using. Recommended sand weights: 80 lbs for each sand bag (160 lbs in total). Please close and tie up the umbrella when you don't want to use it, especially in windy and rainy days, so that its service life is prolonged.