It is very easy to apply on windows, glass, mirrors, glass cabinet panels or any smooth surface. Not suitable for dirty or rough surfaces. Window electrostatic films provide privacy, reduce sun glare, and reduce air conditioning costs by deflecting the sun's punishing summer rays. Window film reduces heat loss during winter monitoring and blocks UV rays that cause furniture and décor to fade. Specification: 100% Brand New, Waterproof, High Quality. Environmental friendly. Easy to install with or without glue. Easy to repair and remove. Using electrostatic technology. Easy to clean. anti-UV. Protect furniture and carpets from fading. Detachable and reusable. Ideal for residential and commercial applications. It provides up to 99% UV protection while allowing light to pass through. Provides significant thermal insulation. Size: 45*100cm pack 1x window film Install: Thoroughly clean windows with window cleaner and paper towels to remove dust. After removing the backing film, wet the glass and film with clean or soapy water. Install window electrostatic film glass. The smooth side sticks directly to the glass. Use a spatula to remove water and air bubbles. Dry the film with a paper towel. Pls note: 1. Due to different computer display colors, the actual color may be slightly different from the above pictures. 2. Due to manual measurement, please allow 1-3cm error.