One Way Privacy ProtectionThe one way reflective mirrow window film provides perfect privacy during daytime only because outside glass shows mirror effect. As the outside light becomes weaker, the mirror effect of outside glass will disappear gradually and outside people can see inside.Remember to draw curtain at night. Anti-UV ,Heat Insulation and Energy SavingOne way window film blocks out 90% of infrared rays and 95% of UV rays reducing glare and reducing fading and aging of interior furnishings. The heat control window film can retain heat in winter and keep it out in summer, reduce the cost of air conditioning. Easy to InstallTear off the back film,then use a lot of WATER to fully soak the window film and glass and scrape the bubbles. If the bubbles do not disappear completely, please be patient for a few days for its disappear. Adhesive and Easy RemoveAdding an adhesive layer makes the installation more firm, prevents falling off, and can also prevent splashing when the glass is broken. Spray a lot of water in the gap between the window film and the window during removal, easy to remove and no residue Wide ApplicationThis reflective privacy window film can be installed on any smooth glass surface.Simple tailoring, perfect for bedrooms, kitchens, offices, balconies, backyard schools , shopping malls, etc.Decorative, privacy but with light in, reflecting