The perfect accessory for your Backyard, Made from heavy duty high density polyethylene weave fabric, constructed to signicantly reduce temperature below. They can be attached to homes, trees, or patio columns. The heavy duty Polyethylene weave resists mold and mildew and is easy to clean. This unique state-of-the-art mesh material will block the sun"s UV rays while "breathing" to allow air to circulate and keep the environment underneath much cooler.