【Large Patio Umbrella with Base】The 15 ft x 9 ft patio umbrella provides a larger shade area when fully opened, with up to 135 sq. ft. of shaded area. The pool umbrella will come with a durable base that includes a cross base, two sandbags and a polyester cover. (Note: Each sand bag holds 100 lbs of sand to keep the umbrella stable) 【Sturdy Durable Material】Our patio umbrella frame made of 12 sturdy-duty alloy steel ribs for provides enhanced support and stability, and with thick coating to resistant rust, durable. The canopy's double-layer vent design not only promotes airflow but also makes the umbrella remain stable and grounded. 【99.9% UV Protection】This patio umbrella canopy is made of 3-Year Fade-Resistant,UPF 50+ polyester fabric, effectively blocking over 99.9% of harmful UV rays, ensuring a safe and comfortable outdoor experience. This sizable canopy stands up to the elements. 【Convenient Adjust Design】This outdoor umbrella is designed with crank lift system for easy and quick use. A few turns raises the canopy to the perfect height, lowering is just as easy. Push button tilt design allows you a brief press you can to adjust the umbrella angle as the sun moves to gets more shading. 【Widely Applicable】 The 15ft outdoor patio umbrella with wider canopy provides shade for up to 2-8 people to dine or relax in comfort. The outdoor patio umbrella is a perfect and essential for summer or sunny days to shade sunshine, apply to the yard, beach, square, garden and patio shops like cafe, restaurant, swimming pool.