NON ADHESIVE - Static cling window film without glue, made of environmental friendly materials, very easy to install. Soapy water is the key ingredient, and PEELING OFF THE BACKING LINER is necessary. ROOM DARKENING - Our whiteout window film stops 100% of daylight and also provides comprehensive two-way privacy, ideal for someone who needs day sleep and complete privacy. HEAT CONTROL - Besides blocking UV, our brushed window film are very effective at controlling excess heat and glare, also does well in preventing the fading of home furnishing. REUSABLE WINDOW FILM - Glue free design, very easy to remove and reuse, no residue left. Roll up and keep it well when you don't need it until next time application. APPLICABLE SCOPE - Compare to the black film, the white blackout film can be applied on all flat and smooth glass even if it is not tempered glass. You can DIY this film as a glass décor by cutting it into any shape.