Moyishi Chorme Silver Reflective Privacy Window Film Decal with Nightime Vision 24''x60'' One way mirror film Creates privacy during the day while still allowing light to pass through. Gives window a mirror-like look so onlookers can't see in from the outside.Useful for glass partitions (separating private rooms from public ones) Rejects summer heat and insulates during the window, reducing your energy bills. Professional adhesive material and film that can last many years. Scratch resistant coating Easy to install with backing glue. Peel the liner and the glue is there.