SecureElegance provides you the safety of the traditional "iron bar" storm door while exposing the beauty of the entry door. The "KeepSafe" laminated glass features a tough layer of polyvinyl butyral fused between two panes of tempered glass. If the outer glass is broken, the laminated interlayer remains intact. In addition to deterring burglary, the KeepSafe glass serves as a defense from severe weather and a sound barrier. Its UV coating protects carpets and home furnishings from fading by 99%. SecureElegance comes with hidden hinges and the Guardian 3 triple locking system. This two-step locking process is a child-safety feature.