The Radiance exterior solar shades block 85% of UV rays, the main culprit of heat penetration. Stopping the sun’s rays before they hit the window helps reduce energy bills, making sunshades a good investment. These semi-private shades also help reduce the glare on TV and protect furniture from fading. Choose from three popular colors and four sizes. The durable, knitted, waterproof polyethelene fabric is perfect for exterior or interior usage. The shade installs easily as an inside mount, outside mount, or ceiling mount and looks great in sunrooms, on porches, or decks. You can hang it on the exterior of a window outdoors or on the inside of the window for added room decor. The pull chain cord rolls up the shade and includes a child safety device.