About this item 100% POLYESTER CANOPY - This Patio Umbrella made of 100% polyester fabric, the cloth can block up the harmful UV rays and weaken the heat of the sunlight, so as to protect your skin. Easy to clean that you can use for many years. HIGH-QUALITY FRAME: Our backyard umbrella is made of aluminum pole and 6steel sturdy ribs, provides stronger support. Rust-free powder coated in black matte finish. EASY OPERATION - It has a crank for opening and closing, operates with crank open system for your easy and quick use. Keep cool and give more shade under the umbrella. 9 FT PATIO SHADE UMBRELLA - Overall Dimensions: 106. 3"(L) x 106. 3"(W) x 94. 5"(H); Pole Dimensions: 1. 5"(Die). Please note that the base of the umbrella is not included in this offer. Our caliber of umbrella pole is 1. 5 inches. CUSTOMER SERVICE - Our store offering free replacement or refund in 30 days : installation problems, damage and missing parts. If there is any quality, please contact us freely. Instructions can be downloaded from the page under the "Product information".