Whole Day Privacy - Privacy: the frosted film offers 100% privacy while Allow the Sunlight in and you can full relax in your home enjoy a soft comfortable light UV-Blocking - Blocks moderate glares and 96% harmful UV rays,reduces Furniture,Curtain and Wallpaper Bleaching or Changing in Color by Prolonged Sun Exposure Saves Energy - It filters the direct sunlight and prevents harmful glares,cool down heat in summer and bringing warm in winter,saving Air conditioner cost Easy to Use - The non-adhesive film is more convenient to use. Just stick a lot of water to the glass surface and you can finish it in minutes Glue free \u0026 Reusable - the static cling film glue free design without Chemicals, Health for Your Family,removable without any residue, can be applied several times Note- Please use a Hair Dryer to soften the window film(Especially the corner) before installation in winter, so as to better to stick to your window