BDF BBL Window Film Bold Block Decorative (1 3/8 Inch White Squares) - 12" X 25ft WHITE BOLD BLOCKS appear in a recurring pattern to add design to your window. STRONG ADHESIVES to last many years. For easier installation, remember to use A LOT of soap/water mixture to soak both the adhesive side and window. HIGH QUALITY PERFORMANCE films that are sensitive by nature. Please remember to take caution when handling the film as the slightest fold will create a permanent wrinkle. FREE TOOLS AND EASY INSTALLATION GUIDE to make installation DIY-friendly. Make sure window surface is completely clean and absolutely free of any blemishes. EASY UN-INSTALLATION process that will not damage the glass.