Window Privacy Film Frosted Glass Window Film Decorative Window Cling Privacy Film Non-Adhesive Sun UV Blocking Heat Control for Home Office, 23 x 78. UV RAYS PREVENTION Blocks harsh glare and harmful UV rays from direct sunlight to avoid harm to skins, filters most sunlight and reflects 84% of UVA rays and 99% of UVB rays. EASY INSTALLATION No glue, static cling, makes installation easier and allows for mistakes (touching the back of the film) without being a problem. After removal, there is no residue and will not cause any damage to the window glass. REUSABLE Very easy to disassemble and Reuse, leaving no residue. If you don't need it, please roll it up and stay in good shape the next time you apply. So even if you need to move, the window frosted Film won't go to waste.