The umbrella has an aluminum pole which makes it lighter but improves its strength and durability. The aluminum die-cast joints make the umbrella more stable and wind-resistant. The triangular frame makes it stable and long-lasting. The canopy is made of high-quality fabric that is great for UV protection and works well for water-resistant. The vented canopy helps air circulation and heat dissipation, giving the umbrella more stability which is suitable to be applied at seaside, gardens, beaches, cafes, and other outdoor occasions. Chose this cantilever patio umbrella to enjoy the sunshine without sunburn. It provides superior support to resist wind. Our innovative 5-level tilting system provides maximum coverage from the sun all day. Effortlessly tilt the umbrella with our ergonomically designed sliding handle. No more fuss. Open, close, and tilt with ease! The cross base is included, and the weighted base in the picture is not included. To stabilize this type of umbrella, you must purchase a weighted base separately.