Defender Security U 9846 Patio Sliding Door Loop Lock &ndash; Increase Home Security, Install Additional Child-Safe Security, 1-1/8&rdquo; Hardened Steel Bar with Diecast Base, Nickel Plated N/A Imported SECONDARY SECURITY LOCKING DEVICE  This U 9846 Patio Sliding Door Loop Lock can be used on a patio sliding door as a secondary security lock for increased home safety CHILD-SAFE SECURITY DEVICE - This door loop 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 home or office doors are within reach! Installation fasteners are included DURABLE CONSTRUCTION  This door loop lock has a hardened steel locking bar with diecast constructed mounting plate and keeper, with a nickel plated finish PRODUCT INFO - This locking device features a 1-1/8 reach, which is designed to secure the door to the jamb Used on patio sliding door systems as a secondary security locking device 1-1/8 in reach Nickel plated finish Hardened steel locking bar with diecast constructed mounting plate and keeper