Product description Size: 40 cm wide, 3 meters long Insulation and warmth Thermal insulation in summer, heat preservation in winter, higher thermal insulation rate, compared to unfixed film in summer, only part of the heat can pass through. Privacy Policy Due to the one-way principle, the bright side cannot see the dimly lit side, effectively protecting privacy. Anti-UV Block most UV rays, protect skin, prevent furniture and fabrics from aging, Anti-glare Effectively weakening the sunlight, softening the light and not hurting the eyes. Waterproof and oil-proof Waterproof, oil-proof and privacy-safe multi-layer technology sleeve printing technology thick texture Convenient and safe self-adhesive frosted opaque window film helps you protect your Protect privacy, avoid unwanted vision and reduce distractions wherever you are. High quality PVC and PET materials make the window film reusable after peeling it off. It can reduce waste and make a small contribution to environmental protection Glass with window film can reduce damage when the glass suddenly breaks, and better protect you and your children . Our film is glued, but remember to spray more water (add some detergent to the water) when you paste it. If you spray more water, the film will stick tightly and will not wrinkle easily. If it is not pasted well, you can re-paste it, and use a scraper to scrape out the water inside after pasting. Generally, there will be some small air bubbles immediately after pasting, and they will disappear after drying.