3D rainbow effect: the mosaic window film is colorless and neutral in color. Under the light, it will show different colors. When the sun goes down, the film will bring beautiful rainbow colors into the room. So it can decorate your house better. Privacy Protection: Opaque window film gives you privacy and allows light to pass through. Privacy is determined by light intensity. The stronger the sun's rays, the better the effect. (Use in bathroom or window without light not recommended) Anti-glare and sun protection: block most glare and 96% of dangerous UV rays, also protects your furniture from fading and aging. At the same time, it still receives enough sunlight in the room. Glue-free and reusable: Glue-free design reduces harmful rays. No residue when removed and can reuse multiple times. You can always apply and remove the decorative film. Easy to install: Through static charge, windows can apply self-adhesive films as long as the protective film is removed and sprayed with plenty of soapy water. Observe the mounting tips, then the film sticks firmly to the glass. Important: When mounting, please leave a distance between the window edge and the film (for example, the window size is 20 x 10 cm, please cut the film to 19.5 x 9.5 cm). It can't stand up directly to the window frame because they will peel off so easily.