Shatex Shade Panel Block 90% of UV Rays with Ready-tie up Ribbon for Pergola/Greenhouses/Carport/Porch 12x20ft Black Shatex Shade Panel Block 90% of UV Rays with Ready-tie up Ribbon for Pergola/Greenhouses/Carport/Porch Breathable fabric,allow air ,water and wind go through, lowering the ambient air temperatures up to 20%. 90% UV Block Shade cloth,light and flexible,resists mold and mildew. Reinforced edges with ready-tie up ribbons ,ropes 11.8" in length,perfect for the pergola which pillar less than 1.2" in diameter. It is durable as a shade attached to the top of pergola.