90% UV Blockage: The pergola shade cloth is made of 200 GSM UV protected high density polyethylene (100%HDPE) shade fabric with strong stitched seam that resists tearing and fraying, up to 90% UV Blockage. Breathable Material & Privacy Protection: The breathable shade fabric provides enough light to offer you privacy from the outside world without completely blocking your view. Allow rains to pass through , so there's no pooling water ( So it is not waterproof). Easy to Install: Attach to the fit size structure with zip ties or bungee balls (this shade cloth comes with 30 zip ties,12 bungee balls,and 6 nylon rope as a bonus). Strapped it down on the pergola or patio with screws for more stable. Reinforced Edges: Each Amagenix outdoor sun shade cloth is designed with heavy-duty aluminum grommets that are spaced out every 2’, and 2 aluminum grommets are specially designed for each corner, which makes it easier to hang and secure with the strap or other accessories. Ideal Shade Solutions: The pergola replacement canopy provides dense outdoor shade of 90% shade rate. Widely used over a patio,garden, carport, porch, deck, pergola, courtyard or other outdoor area. Amagenix Sun Shade Fabric for Patio Garden Pergola. Made of high-density polyethylene(HDPE) material. Prevents harmful UV sunlight from damaging. Perfect for patio, pergola, lawn, windbreak fencing; pool privacy screen; garden cover; tree guards. Every 2 FT one solid grommet is placed on each edge for easy installation. The shade fabric is full of flexibility, thus there would be a "5% length gap", shorter or longer, than the real measure.