BDF RPRGY Window Film Premium One Way Mirror Privacy Silver/Gray (Very Dark) - 12in X 14ft GRAY INSIDE, SILVER OUTSIDE for a better mirror-like appearance. EXCELLENT DAYTIME PRIVACY. Provides great intended privacy during daytime only; the mirror-effect is reversed at night since the interior will be exposed to more light than the exterior. The side with the most light will have the mirror-like appearance. 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. This is installed on the interior side of the 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.