REUSABLE & RECYCLED-- This blackout window film is static cling without adhesive,super easy to do application on smooth,clean window glass surface,and it can be removable and reusable. 100% LIGHT BLOCKING: This privacy window film can make your room as dark as night in the light of day darker than curtains,ideal for someone who needs day sleep and complete privacy, and it s also 100% UV blocking. ECONOMICAL & EASY APPLICATION: No more heavy & troublesome curtains or blinds,by using this high quality dark black window film,it will be an easy thing to decorative your glass surface in the Bathroom,Kitchen,Office,Living Room and more place in minutes. PRIVACY PROTECTION:This blackout window film is opaque,can provides high level privacy. INSTALLATION TIPS: Please make sure the window surface, edges and corners are clean enough without any dust and remember to peel off the clear backing film before installation; Please must peel off backing protective film when do application Please spray a lot of water both on the window surface and window film back during installation for effective attachment.