EXCELLENT MATERIAL: Made from PET, this glass film is heat-resistant, moisture-resistant, and corrosion-resistant, ensuring indoor stable insulation and sun protection for a long lifespan. EFFECTIVE INSULATION AND PRIVACY: Utilizing nano-ceramic heat-insulating technology, this privacy window film effectively insulates, protecting your skin and furniture from fading and aging. It also maintains indoor brightness and clarity while maintaining privacy. INSTALLATION INSTRUCTIONS: Installing privacy window film is simple. Simply remove the backing, apply the film, and smooth out any air bubbles with a squeegee. While privacy window film provides effective privacy during the day, at night, when indoor light levels are high, the mirrored effect reverses, making it possible to see inside. VERSATILE USES:This privacy window film provides daytime privacy by reflecting sunlight, acting like a mirror, shielding interiors from prying eyes while allowing natural light to filter in. This reflective, heat-insulating, self-adhesive glass film is perfect for living rooms, bedrooms, offices, sliding doors, balconies, waiting areas, and any window space requiring heat reduction and enhanced daytime privacy. Material: PET Color: Gray Silver Size: 40cm x 300cm / 15.7 inches x 9.8 ft (L x W) Packaging: 1Pcs x Privacy Window Film