Enhanced Security High-qualitywindow door locks provide enhanced security for doors and windows. Adding a lock increases security once. Even if youre away from home for a long time, you dont have to worry about the safety of your home. Features âŞ[High Quality] Our spring-loaded automatic latch is made ofthickened aluminum alloyto ensure quality and service life. While possessing the features ofnon-rusting and corrosion resistance, it can also ensuresturdiness, durability, and stability. âŞ[Bolt Spring Loaded Security Gate Door Lock] Aluminum alloy automatic door bolts, spring-loaded, pull tabs. The bolt is spring-loaded, which means that when you close the door,the latch will automatically reset and lock. âŞ[Easy Installation] Use a crossscrewdriver to tighten. For harder wood, it is recommended tomake a small hole before install. Can be freely installed from different angles. Do not use a hammer to install directly. Screws are included in the package. Easy to install: includes mounting screws, good replacement, durable, sturdy. Specifications Note