Style and security meet in VViViD Vinyl's coloured window tint. These durable, long-lasting film provides privacy and security in the daytime when applied to windows in the home or office. The mirror finish provides privacy and deters burglars while the back side of the film is perfectly transparent. This film blocks harmful UV rays and reduces energy costs. The acrylic-based adhesive backing features air-release technology making it easy to install, reposition and remove at any skill level. (For best results, the room with this film on its window needs to either be unlit or less bright than than on the outside, mirrored surface of the vinyl film. If the room with this film on the windows is brightly lit, the mirroring feature of the vinyl will not function as well or at all)