Heat insulation: Our mirror window film also reduces 90% of heat and 99% of sunlight. By reflecting most of the sun's rays, the solar film ensures a pleasant temperature in your rooms Privacy::The one-way mirror effect window film protects your privacy during the day. The brighter side can not easily see the less bright side. If it is brighter inside than outside in the evening, don't forget to close the curtain at night. Easy to use: You can easily apply the window film to your window with enough water. With water and a small scraper or credit card, you can properly apply this window film in just a few minutes（Remember to tear off the protective film, otherwise the film will fall off） Safety equipment::Our window film is made of PET material. This material is suitable for many smooth surfaces such as windows, plastic metal surfaces, etc. Good Performance: Mirror window film. Excellent heat insulation with scratch-resistant layer on the surface, resists friction, does not fade yet; At