Hanita Safety Zone 4mil or (100micron/0.1mm) thick Anti-graffiti films are designed to be applied on glass in high foot traffic and public areas, these films have a scratch resistant coating that when applied to the glass If vandalism or damage occurs to the glass, the film will take the brunt. The Anti-Graffiti films have a specially designed adhesive that when removed will leave little to no trace of the film ever being on the glass. So no need to replace expensive glass, just replace the film and its as good as new. Roll length is 30.5m. Pre-cut available in any length, by the roll widths available.