Only Daytime Privacy & Clearer Vision: With a mirror effect in daylight, you can enjoy unobstructed views while maintaining your privacy. However, please note that as lighting conditions change after dark, to ensure privacy at night, we recommend drawing your curtains or blinds Heat Control and Save Energy: Our window insulation film is designed to let in natural light while effectively reflecting most of the sun's excess heat. This one way window film is designed to keep your home cool in the summer by reducing excess heat and retain warmth in the winter, offering year-round comfort and energy savings Sun Blocking & PET Explosion-Proof: By blocking 99% of UV and 80% infrared rays, it helps to safeguard skin health and prevent furniture from fading, enhancing both comfort and longevity in your home. Additionally, the impressive impact resistance adds an extra layer of security, giving you the peace of mind that your loved ones are protected from unforeseen dangers Window Film Kit: Our one way privacy window film include all necessary installation tools to save you time and money. It's helpful to know that larger-sized window films may require you to use larger installation tools Don't Miss the Tip: Before purchasing one way window film, please ensure you carefully measure the dimensions of your windows. For a smoother installation process, please watch our installation video thoroughly beforehand. You may also practise installing the film on a small window in advance