The Wind-Resistant 8 Rib Octagon Market Umbrella has 8 fiberglass ribs and a top made of marine grade fabric with a wind vent. It is available in 7 1/2′, 9′, and 11′ diameters. The two-piece aluminum pole is 1 1/2″ diameter and is available with a white or bronze color powder coat finish. Crank, push up, or pulley & pin lift mechanism included. No tilt.