Degol : Secondary Security Lock for Door 

• SECURITY LOCKING DEVICE – This Swing Bar Lock is a security locking device for hinged swing-in doors, allowing a door to be slightly opened to allow safe viewing and ventilation.

• CHILD-SAFE SECURITY DEVICE – This swing bar lock can also be installed out of reach of children so they cannot open the door by themselves, providing additional child-safe door security.

• EASY INSTALLATION  - Installation is quick and easy – additional security for your doors are within reach! Installation fasteners, including plastic shim spacers for leveling, are included.

• DURABLE CONSTRUCTION – This swing bar lock is constructed of zinc diecast with a brushed chrome finish. It’s strong and durable, sure to last.