3-Layer Roof Design: This 3-tier patio umbrella enhances air circulation, providing greater stability than 1- or 2-tier umbrellas in windy conditions. During summer, the breathable triple-layer roof allows heat to dissipate quickly. Wind resistance: Levels 3-4 Large Shading Area: This patio umbrella stands 8.3 ft. height and features a 10 ft. (Φ) diameter shade area, it offers excellent coverage for entertaining friends, dining, relaxing outdoors, poolside use, markets, or festivals Premium Material: The canopy uses high-quality 200gsm 100% polyester with PU coating, featuring water resistance and UV protection. The rust-free steel frame ensures durability and stability for years of use Smooth Aluminum Crank: This Aluminum crank mechanism is built into the pole controlling the umbrella to open and close smoothly. A button feature on the pole switches the angle of the umbrella for sun protection throughout the day Notice: The umbrella base is not included, must be purchased separately. Please close the umbrella in extreme weather; The pole diameter is 1.5 inch, please measure your dining table post hole before purchase (Fit 2” (50mm) table post hole This umbrella boasts a stabilizing 3-layer roof (wind levels 3-4, improved airflow/heat venting), a large 10 ft shade area, premium materials (water/UV-resistant 200gsm PU polyester canopy, rust-proof steel frame), and convenient operation via an aluminum crank and tilt button. Note: base not included, close in extreme weather; 1.5" pole fits 2" table holes.