Vacant or Engaged indicator: This door lock is designed for toilets, restrooms, and bathrooms to show whether the room is vacant or engaged. The red color indicates engaged; the green color indicates vacant. Ataglance status for clear communication. Durable construction: Made of zinc alloy, this lock is sturdy and antirust. It features a smooth finish for a sleek, modern look and is built to withstand frequent use for longlasting performance. Easy installation and compatibility: Simple design with easy installation. Suitable for doors and bulkhead doors with plates 12 mm to 18 mm thick. Includes all hardware for a hassle setup. Broad applications: Ideal for residential bathrooms as well as public facilities such as airports, stations, hospitals, shopping malls, and office buildings. Provides a clear indication of room status to improve privacy and convenience. Key specifications: Material: zinc alloy; Finish: smooth; Indicator colors: green for vacant, red for engaged; Plate thickness compatibility: 12–18 mm. Use scenarios: In busy airports or train stations, it can quickly show if a stall is occupied, reducing disturbances and guiding flow. In office buildings or hospitals, occupants and cleaning staff can coordinate usage and maintenance with clear occupancy signals. In public facilities with bulkhead doors, it helps maintain privacy and streamline restroom management.