Small Tips for YOU,please read before buying.*Please Note that This Window Film Only Applies on Smooth Glass Surfaces.Do not Apply to Outside window or Windows with Crack.*Don't forget to remove transparent backing side before putting on glass or it will not cling(Use a tape on a corner of the back side (the smooth side) to quickly remove the backing protective film).Electrostatic Non-glue Ultra Strong Adsorption Easy to Be Removed Without Leaving Any Trace.