Hdpe UV Blocking: The exterior roller shade is made of 220 GSM UV protected high density polyethylene (100%HDPE) shade fabric. Blocking up to 90% of harmful UV rays, these outside sun shade not only protect your family well but also reduce the glare of the sun and block heat. Breathable Material & Privacy Protection: These porch blinds are made of breathable knitted fabric provides enough light to offer you privacy from the outside world without completely blocking your view. Easy to Install: You can easily install these pull down shade on the wall or ceiling. Wand operating mechanism easily raises or lowers the roller blind with no chain required. The package comes with a detailed user guide, bracket hole measuring paper and all necessary accessories.