- Wide Applications: The security door strike plate is suitable for dead latches and deadbolts with 5-1/2 inch to 6 inch hole centers. - Durable Material: The security door strike is made of high quality heavy duty steel material, high hardness, wear resistant, sturdy and durable to use. - Maximum Security: The door strike provides a firm and strong hold, is reliable and sturdy to effectively prevent doors from being pried open and kicked in. - High Quality: Professional manufacturing entry door security strike, strong, not easy to break and deform, has a long service life. - Easy Installation: The door strike fixing protective plate is easy to install, it comes with self sticky tape to aid positioning and is then fixed with attached screws to the door frame. Specification: - Product size: Length 11inch - Material: steel Package Includes: 1 Piece Security Door Strike 6 Large Screws 9 Small Screws Note: Please allow slightly errors due to manual measurement and different monitors.