Attention：The window film is basic without color, but it becomes colorful under the light and reflects a rainbow effect that fills the room with color, it looks like stained glass, beautiful visual effect. Note: Whether it produces a rainbow effect depends on where you install it and the weather conditions!!! Privacy Level. The privacy window film can obscure outside views so that you can always feel safe when staying in your personal space (Attention: It is not recommended to use it in the bathroom because of its not very high privacy level) Energy Saving Anti-UV: Our blackout window film made of high quality material, Effectively Blocks Sunlight and Harmful UV Rays, can effectively block 84% of UVA rays and 99% of UVB rays, and protects your skin and furniture from direct sunlight exposure, while still allowing filtered natural light in No Adhesive: Static and self-adhesive, no glue needed to stick. Due to its glue-free design, it can be easily removed without any adhesive residue