Add an extra layer of protection to your home with the Defender Security U 9847 Patio Sliding Door Loop Lock. Designed as a secondary locking device, this loop lock upgrades sliding patio door security by helping prevent unauthorized entry. It's an ideal solution for homeowners looking to reinforce existing door locks without replacing their entire system.This loop lock also provides an added level of child safety by allowing installation higher on the door, keeping it out of reach of small children. This helps prevent unsupervised access to outdoor areas, making it a practical option for families concerned about safety.Constructed from hardened steel with a nickel-plated finish, the locking bar delivers strength and durability you can rely on. The included diecast mounting bracket and keeper are also nickel-plated for corrosion resistance and long-lasting performance. Designed to secure the sliding door panel to the jamb, the lock provides a stable and secure hold when engaged.Installation is quick and straightforward, with all necessary mounting hardware included. Whether used in residential or light commercial settings, this patio door loop lock is a simple and effective way to boost door security and peace of mind. The 2-1/8 inch reach ensures proper engagement for compatible door setups. Be sure to review the line drawing to confirm fit before purchasing.