A latch is a simple mechanical device used to secure doors, gates, or cabinets. It typically consists of a movable bar or bolt that can be engaged or disengaged to allow or prevent access. Latches can be operated manually, often using a handle or knob, and come in various designs, such as sliding, spring-loaded, or hook types. In addition to their basic function, latches can enhance security and privacy. They are commonly found in homes, offices, and vehicles. Some latches are designed to be childproof or tamper-resistant, making them suitable for use in areas where safety is a concern, such as around children or pets.