Coolaroo Coolhaven shade sails with installation hardware kit is a great semi-permanent or permanent shade solution for your deck, patio, or spa. Its unique HDPE knitted fabric blocks up to 95% of the sun's harmful UV rays and is breathable to allow warm air to escape through, substantially reducing the temperatures below. Stainless steel installation hardware and a detailed instruction manual are included with this kit to ease the installation process of your shade sail. The fabric is highly durable, easy to maintain, and resistant to mold and mildew. This product ships in approximately 1 days