PASSES ANSI Z97.1 CLASS B and CPSC CATEGORY 1 testing requirements. Absorbs impact from break-in attempts. Minimizes property damage, holds shattered glass together. Unmatched transparency and optical clarity, 99% UV rejection. Not intended for heat control. Convenient installation that can be finished in a matter of minutes. You can also trim to fit your windows. Professional adhesive material and film that can last many years. Buy Decorative Film's 8 Mil Security and Safety Clear window film helps you protect your lifestyle from unwanted damages. Its 8 mil thickness allows the film to serve as a protective layer once applied to your window. The clear 8 Mil Security film can also absorb impact from break-in attempts and hold shattered glass together in case of breakage while remaining virtually transparent so that you will barely even notice that it's there. Size Explanation The first value (width) specifies the width of the film roll. The second value (length) specifies how long the film extends when unrolled. For shipping addresses outside the United States, up to 36in width is available, due to the size limits of our international fulfillment.