Window Film One Way Mirror Film Windows bring sunlight in but also cause cooling cost.Window glass privacy film can reduce energy loss and lower cooling costs by up to 30 percent.Our window films are self-adhesive film, you can use it in your homes, cars , shops, offices and building windows. Features:15% visible light transmittance.95% total solar energy rejected.safe,anti-explosion,reduce glare,sun block effect creative a complete daytime privacy space.100% brand new and high quality. Material: PET FilmColor: SilverWidths:50cm,76cm,100cmLengths:1m, 2m, 3m, 4m, 5mThickness of base film: 2.0MILPackage includes: 1 x Window Film (wrapped in a hard paper tube)1 x Free Knife1 x Free Scraper bladeRemarks:1.Window film the privacy effect will be different as the light and angle changes.2.Single plane fluoroscopy:One-way perspective refers to the strong light intensity side can't see the dark side of the light, which means when indoor light is stronger than outdoor, people outside can see people inside.In general,people outside can't see people inside during daytime.3.Different effect between daytime and night:The outside glass will show a mirror effect as well as keep your privacy during daytime, when evening indoor light is stronger,then the glass outside will lose mirror effect as well as outside people can see inside.4.Mirror effect:The mirror effect we said means it has a slightly reflective effect,not totally like a mirror.Tip for Removing the Carrier Film: Place two pieces of tape on two sides and then remove slowly.Installation:1. Trim films to required size.2. Clean glass3. Wet glass with soapy water4. Peel off backing film and wet the film with soapy water5. Set up film on glass6. Squeegee away water and air bubbles.