Note: Installation instructions pls reference picture or below product description -- High quality PE material, easy to apply and remove. Applied this film to the interior side of the window Minimize property damage by absorbing impacts from break-in attempts and holds shattered glass together Helps prevent intrusion, reduce the damage caused by theft or accidental. Protect high-rise skyscrapers from wind waves or bad weather. UV protection, surface easy to clean and maintain. If you have any questions, please feel free to contact us at anytime.