High Quality100% High Density Polyethylene fabric, with strong stitched seam and durable stainless steel D-rings | Easy to UseFind your supports and tight the shade sail to them with ropes by the D-ring, you can install yourself in a few minutes. 4 ropes come with the package | UV ProtectionThe fabric is breathable and 95% UV block, allows cooling breezes and light to pass through for better airy and comfortable space |