Fly screen with sun protection for easy opening and closing. The Sun Protection Open-UP fly screen can be easily opened and closed for watering plants or airing out bedding. Experience the simple interior installation of the fly screen using the self-adhesive velcro tape. Customizable to the size of your window, this alternative protects interiors from annoying buzzing and biting insects. At the same time, it keeps the heat out—even with the window open. The specially coated fabric reduces indoor heating by reflecting sunlight. Since the window frame does not need to be drilled, the Open-UP fly screen is ideal for rental apartments.