Product description Notice: This No-glue film is only for smooth glass.Can not fit to frosted glass or art glass. Installation Step 1. Measure windows and trim film; Step 2. Clean glass, then wet glass with soapy water(or just clear water also work well); Step 3. Affix taps on both sides to remove the transparent backing film.( which is a kind of clear vinyl, please MAKE SURE remove it before you apply the window film to glass); Step 4. Apply to wet glass and smooth with a smooth tool,such as a credit card or a spatula,or hands; Step 5. Squeegee away water and air bubbles; Step 6. Cut off the margins. Tips for Installation: 1.A clean and smooth glass surface without any dust, fiber or any kind of texture is needed. 2. The transparent back cover must be peeled off; otherwise, the film will fall off when the water is dry. 3. Do not apply to the window frame. Cut off excessive edges after application if needed. 4. The film may be a little tough and its adhesive effect will be impacted in winter. Solution: use hair dryer or warm water to soft it.