The 0.15mm thick mirror film is made of high-quality PET material to provide flexibility and durability. Adhesive and static electricity for a safer double grip. Transparent from the inside: does not affect the view from the window at all. Privacy protection and decorative buildings: matte mirror from the outside, looks more advanced. Retains heat in winter and reflects it in summer, maintaining a pleasant indoor temperature. The eco-friendly heat-repellent film saves air conditioning costs. The insulating film has an insulating effect and therefore allows you to save on heating costs. High quality: the 0.15mm thick mirror film (better quality than other 0.05mm thick films) is made of high-quality PET material to provide flexibility and durability. Surface with anti-scratch coating, not easy to damage. Can remain adhered to the glass of a window indoors or outdoors for years. Wide application: suitable for smooth and clean glass surfaces in living rooms, offices, bedrooms, sliding doors, etc.