Mirror Film Self Adhesive Window Sun Protection Film UV Protection Heat Insulation Window Film One Side Privacy Screen Roof Window 15.7x39.37 inch FEATURES: Highly-reflective material provides superior daytime privacy while maintaining your view of the outside. This upgraded film can block most of the sun, reflect 99% of UV rays and 85% of infrared rays and reduce for increased interior comfort. The new strong glue design will help the mirror window film cling on the window surface firmly and make it available for long time use. High privacy during the day: During the day, the window film is transparent from the inside out. Only the mirror effect can be seen from the outside. The perfect privacy screen. At night, the effect is reversed, and the inside can be seen from the outside. you have to drop the curtains or roller blinds. Installation Instructions: 1. Measure the surface and cut the film. Leave an extra inch margin on each side for an easy adjustment. 2. Clean the target surface thoroughly and make sure the surface is clean enough. 3. Peel off the transparent backing film along a short side. 4. Spray a lot of water both on the adhesive side and window surface (Very Important ), then apply the film to the window. 5. use a squeegee to flatten the film gently and out bubbles little by little. 6. Trim off the margins and use a cloth to flatten out the film. Here you go Package Included: 1 x 40x100CM Mirror Film