3D Window Film Reflection: The film Itself Is No Color, Colorful Principle Is The Principle Of Light Reflection And Refraction Requires absolutely no adhesive, so you can rest assured knowing the film will never damage your windows or leave behind a sticky residue, Water is the only tool you will use, more water, more better. To remove, simply peel the window film from any corner. It comes off cleanly leaving no residue.When not in use, window film must be replaced and stored on the original backing paper. The side of the film that touched the glass should face the glossy side of the backing paper. Window Film Operating Instruction: Step 1. Keep Window or Glass clean Step 2. Wet the Window or Glass with water( Soapy water will be the best choice ) Step 3. Remove the Static Film from backing protect sheet ( Please MAKE SURE you have removed it before you apply the window film to glass) Step 4. When you install it, Apply to wet glass and smooth with hands. Step 5. Squeegee away water and air bubbles. Step 6. Much easier than Wall Decals, it's no problem for you. Step 7. Enjoy your works! Avoid direct sunlight 3D Window Film Reflection: The film Itself Is No Color, Colorful Principle Is The Principle Of Light Reflection And Refraction, presents the same effect as a diamond, very beautiful Decorate your home Apply this 3D window film, you can not only look at the scenery outside the window, but also bring us privacy.the window film is semi-privacy. Good Choice for bedromm Especially suitable for office space, to create a comfortable bedroom atmosphere, so that your sleep is not disturbed