About this item Aluminum Alloy Steel frame Hand Wash Only 【Material】Fabric Top Cover, Alloy Steel Frame, Powder Coated Aluminum Pole(Diameter Size Φ38x0.8mm) and 8 Strong Steel Ribs with Lights Provide Enhanced Durability. 【Advantage Design】2-Tier Ventilation System Makes Us Cooler Under the Umbrella, Polyester Fabric Material Umbrella Top Cloth, Shading, Water Resistant, and Ultraviolet Rays. 【Adjustable】Crank Handle Easier Open and Close with Offset Tilt Mechanism. Easily Adjusting Your Umbrella to Block the Sun's Rays. Not Include Weigt Base. 【Other Question】On the Top of the Patio Umbrella is Equipped with a Solar Panel, If the Solar Panel Still Don't Work After You Follow the Instructions, Please Contact the Seller's Customer Service for a Free Replacement (Receiving the Product Within 3 Months, Man-Made Damage is not Included). 【Customer Service】All questions from customers will be answered within 24 hours. If you have any questions, please contact and send an email to the customer service staff of the store. We will take every customer's question seriously.