These shades block heat and the suns UV rays, yet have millions of tiny holes to allow air to pass through, so you can let pleasant, cool breezes into your home or patio while keeping the heat out. From the same Australian sun experts that make our triangular patio shade (page x), the unique material in the shades has a dense, breathable weave that filters out harsh ultraviolet light to prevent fading of carpet and furniture, and to reduce temperatures behind the shade as much as 32% (compared to direct sunlight). The shades are high-density polyethylene, which resists mold and mildew, wipes clean with a damp cloth in seconds, and stands up to the challenges of long-term sun exposure. Installs easily in minutes. Please specify Smoke (Taupe ) or Haze (Green). 4-Foot Shade. 4 W x 6 L. (4 lbs.)Please allow 4-6 weeks for delivery. Premium/Express Delivery not available for this item.