The Telegizmos Solar Observing Hood is simple to use and will increase your enjoyment when observing the Sun. A dual layer of TeleGizmos's solar material on the outside will keep you cool by reflecting the heat outwards, and a black opaque inner liner will provide light blockage to increase contrast and relax your eyes. A Velcro closure will secure the cover to your telescope so you won't have to chase it when a gust of wind comes along! A cover such as this significantly will improve your solar observing experience!