Geo Window Film Highly Reflective 36" X 15' - Dark 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. DARK AND REFLECTIVE to create a mirror-like appearance while reducing cooling costs during the summer through effective heat rejection. 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. Refer to the PDF attached below in Technical Specification for User guide