CASAINC 11-ft Aluminum Black Slide-tilt Cantilever Patio Umbrella

11-ft Aluminum Black Slide-tilt Cantilever Patio Umbrella. 11ft large patio umbrella provides ample space for a whole family. PA coated polyester fabric has good waterproof ability and sunshade performance. High density polyester fabric is wear-resistant in outdoor environment. Durable aluminum ribs offer great stability for the cantilever umbrella. Crank and tilt system could keep out sunshine from all aspects. Top air vent increase its ability in outdoor environment. Suitable for backyard, poolside, garden, market, garden, etc. Size of main pole: 3inch x 2,1 inch