This is our new patio double -side umbrella covering large area ,which is your best choice to add shade during the warm weather conditions or you want to beat the rain or wind . The unique three-layer design enhances stability in windy conditions and provides better ventilation for cooler shade. Constructed with the rust-free steel pole and 12 heavy-duty steel ribs, this umbrella is superior in strength and durability, and fade- resistant canopy can block out UV rays, a smooth-turning crank make you easy to open or close the umbrella . You can enjoy the weekend with your friends ,family or customs under the patio double -side umbrella. 【Note】Umbrella base is NOT included. Umbrella work perfectly with our sand filled base (39833992). Pole diameter: 1.9"