High-quality material: The aluminum door lock is made of solid aluminum alloy, which is sturdy and durable. It will not rust, is corrosion-resistant, is not easy to deform, and can be used with confidence. High safety performance: Unlike traditional door locks, the automatic door lock is equipped with a spring, which is not easy to be opened accidentally. It can also be used with a regular padlock (not included) for added security. Easy to install: Spring-loaded locking bolt, simple installation, select the installation location, drill holes, and tighten the screws to complete. 6 pieces of window locks and 24 screws, to meet your different needs. Wide range of uses: The exterior door lock is suitable for family rooms, gates, garages, gardens, bathrooms, closets, kitchens, offices, hotels, etc. .