This product has a total of 9 sizes and 21 colors. Please confirm the size and color you want before buying! Waterproof: The shade sail is made from Polyester with PU coating, anti-light rain, advice to avoid use it in heavy rain and snowstorm installation: Waterproof shade sails need install at a 20-40 degree angle with maximum tension to allow runoff and face up.Otherwise the water will accumulate and not waterproof. UV Block: 90% Shading rate and protect against up to 95% harmful UV rays. Perfect for gardens, patios, lawn, pond, deck, backyard, dooryard, park, swimming pools, bbq area,and other outdoor activities Measurement: Please measure the size of the installation area accurately before purchasing. Leave 1.5-2 foot space for the hardware kit between D ring and fixing points, all edges are finished slightly curved so it can be stretched tightly High Quality: Strong sewing processing on each side, stainless steel D ring on each edge, durable ropes, strongly guarantee the fastness of installation.