Redi Shade Original Black Out shades block all light; perfect for an infant’s room, bedrooms and media entertainment rooms. Ideal for metropolitan areas. Stylish look with no cords for added safety; raises and lowers with clips. Trims and intalls in seconds; simply trim to fit the width of your window, peel off the adhesive strip and stick into place. Fits any size window; for windows smaller than 36-inches wide, trim with a utility knife or for windows wider than 36-inches overlap two or more shades.