SUN BLOCKING & ANTI UV: Sun blocking window film can block 89% of harmful UV rays and 81% of infrared rays, preventing people's skin from aging and furniture from fading. 12% light transmission can effectively reduce glare and allow soft natural light to enter the room. Allowing you to maintain youthful skin while having privacy and a natural view. ❗ Black color can only be displayed from the inside and only silver can be seen from the outside. ❗.DAYTIME WINDOW PRIVACY FILM: Attention about the privacy of one way window film, there is different privacy effect between daytime and night. When the outdoor light is stronger than indoor at daytime, the reflective window film provides a mirror effect, you can see out no one can see in. Note: When the inside light is stronger than the outside at night, the mirror effect will be reversed, people outside can see inside. Do remember to draw the curtain at night..HEAT CONTROL & ENERGY SAVING: Heat blocking window film can reflect 85% of the solar heat in summer, reduce heat entering the room and the temperature of air-conditioned rooms. Heat control window film keeps rooms warm in the winter by reducing the amount of warm air escaping and inhibiting cold air from going in. Thermal window film can help reduce the cost of expensive air conditioning, but cannot completely replace it..STATIC CLING & WIDELY USED: Water is the most important installation tool. The more water you spray, the easier it will be to install. Our static cling window film is designed to be adhesive-free, with no chemical releases. You can easily install and remove without leaving any residue. Suitable for smooth and clean glass, such as Residential, stores, living rooms, offices, etc. For more information on how to install window film, you can refer to our video..WORRY-FREE SHOPPING: 30 days no reason return policy guarantee . If you have any questions about our one way window film, please feel free to contact us, we will solved your problem within 24 hours. Our goal is to make every customer have a perfect shopping experience. Now click "Add to Cart" and get ready to decorate your home.