Create privacy in your home and lock out excessive light with this functional self- adhesive window film. When fitted to the room side of all external glazing you will be able to see out but no one will see in. The window mirror significantly reduces solar heat and glare, keeping rooms cooler in the summer. The one way mirror effect only works on outside windows and only during daytime. As long as the side you want the mirror to be on is at least 3 times brighter than the other side, you'll achieve a one way mirror. The d-c-fix window mirrors offer 95% heat rejection and 5% visible light transmission. 99% UV protection is also provided with this film, preventing sofas and furnishing becoming damaged due to fading. It's easy to apply, scratch resistant, can be wiped clean and is fully removable, leaving no residue. It comes with a free applicator too. Simply measure the glass to be covered, cut to the size required using the handy grid on the backing paper, spray the glass with water, peel back the film and apply slowly to the surface, smoothing down as you go. Trim any excess film with a knife or use d-c-fix's application kit for a flawless finish.