BenefitUSA Umbrella Cover Canopy 13ft 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 13ft umbrella Package: 1x High-quality Umbrella Canopy Replacement Fit Ribs Length: 77.6 to 79.1; Space Between Adjacent Tips: 58.7 to 60.2