HIGH-QUALITY MATERIAL - This shade sail is made of 160gsm high-density polyester with PU coating. It is waterproof, tear-resistant, weather-resistant, moisture-proof, mildew-proof, and stain-resistant. However, it is not recommended to use it in heavy rain. UV Protection: 98% UV protection and 90% shading, protects the skin, high air permeability, effectively reducing heat retention. Easy to Use: Each corner is equipped with a durable stainless steel D-ring. Simply connect the ring to the hook to complete the installation (a slight inclination of 20 to 40 degrees is recommended). Use: Suitable for use in gardens, swimming pools and ponds, pergolas, sandboxes, driveways or other outdoor terraces, for a private, safe, cool and pleasant garden.