The Triad Security Solutions Bullet Resistant Door Guards makes any normal door Bullet Resistant. It will prevent a shooter from blasting down the door and gaining entry causing harm. The Bullet Resistant Door Guard is designed to cover 75% of the door, covering the most likely areas that a gunman would shoot. The Bullet Resistant Door Guard is made from a UL approved levels 1 or 3 bullet resistant fiberglass. The Bullet Resistant Door Guard is lightweight and can be attached to any normal door without causing a strain on the door hinges. Installation is easy using (10) TamperPruf security screws (included).