Umbrella Cover Canopy 11.5ft 8 Rib Patio Replacement Top Outdoor-Brown Canopy for 8-rib Market Umbrella Replacement. Includes air vent, without flap, rubber band connection,versatile for Wooden, Steel and Aluminum Frames. 160g UV Protective and Polyester, Fits Most 11.5ft umbrella Package: 1x High-quality Umbrella Canopy Replacement Fit Ribs Length: 67.3 to 68.9; Space Between Adjacent Tips: 50.6 to 52.1