Features: 1. Mildew resistant canvas, blocks up to 90% of harmful UV rays. 2. Featuring a D ring on each corner which allows you to safely secure the sail shade to an anchor point, the Sail Shade comes complete with ropes to assist you in installation. 3.Create a great architectural garden feature, a versatile alternative to the cumbersome garden gazebo, and allows greater use of patios, decks, pools and hot tubs.