Our Premium 8 Mil security window films, which are thicker than our Premium 4 Mil films, add more reinforcement to the windows they are applied to and thus provide more resistance against impact, helping to prevent possible break-in attempts and delaying thieves in such cases. They minimize property damage and personal injuries by holding shattered glasses together in the case of glass breakage. The Premium 8 Mil films come in different shades of black to promote privacy but still remain incredibly clear to provide outstanding protection without obstructing your view.