Non-adhesive One Way Mirror, Privacy & Heat Rejecting Window Film, Silver/black (24" X 84") Easily trim to your window size, and install in minutes for instant privacy while allowing light. Non-Tacky Adhesive Free, installs easily and is removable without residue. Provides daytime privacy, you can see out but no one can see in. Privacy based on light density, use an exterior light to add night-time privacy. Rejects a dramatic amount of heat, saving on summer cooling bills. Rejects 99% of UV Rays