High-quality material aluminum door lock is made of solid aluminum alloy, strong and durable. No rust, corrosion resistance, not easy to deform, you can use it with confidence. High security performance Unlike traditional door locks, automatic door locks are equipped with springs, which are not easy to open accidentally. It also works with a regular padlock (not included) for added security. Easy to install The spring lock bolt is easy to install, choose the installation location, drill the hole and tighten the screw to complete. Wide usage The exterior door lock is suitable for family room, door, garage, garden, bathroom, closet, kitchen, office, hotel and so on. Product Features: 1. Material: Brass, Stainless Steel 2. Universal Latch: 2 3/8 "or 2 3/4" 3. Usage: For entrance, privacy, passage, storage room, classroom, hotel, dummy