Blackout: Effectively blocks 99% of harmful UV and solar rays. Minimizes sunlight on furniture. Keeps you warm in winter and cool in summer, reduces room heating, saves energy, and lowers cooling costs. It also significantly reduces glare and prevents eye damage. HIGH PRIVACY PROTECTION - The window film provides excellent privacy during the day. From the outside, it acts like a mirror, obscuring everything inside. This protects your privacy while allowing sufficient sunlight into the room. Privacy level ≥95% - enjoy your life easily and safely. Easy installation and application: The window film is simply applied with soapy water; no glue is required. Air bubbles can be easily removed with a squeegee. The surface of the window film is scratch-resistant, lightfast, and bubble-free, easy to remove, economical, and practical. Protects glass from explosions and splashes. Adhesive-free glass protection: The glue-free and adhesive-free coating prevents residue. If incorrectly applied,