Vacancy And Commitment Indicator: Your guests are constantly on the move and others were afraid to use the rest rooms? With this signal lock, your customer won't spend long to find where the toilet is, especially the available room. The Vacant (Green) / Engaged (Red) indicator easily shows if the room is occupied. Premium Quality Durable Metal Material: Made of high quality stainless steel, anti-rust, well made with smooth and wear-resistant surface. It will be applicable for the door panel with a thickness of 12-18mm. Convenience And Efficiency: This product is excellent for avoiding having to knock on the door when the door is closed. The Vacant (Green) / Engaged (Red) indicator will make it clear to everyone that the restroom is occupied from a distance. No more waiting 10 minutes in front of the toilet. Wide Application: Ideal for toilets/shower cubicles and bathrooms. Emphasize elegant, clean and wear-resistant public places, such as: volleyball facilities, gymnasiums, airports, stations, hospitals, restaurants, shopping malls, offices and other public restrooms. Useful lock: Don't worry if the door is closed by accident. There is an emergency hole on the outside to open the locked door when it is locked accidentally. Comes with a smart design emergency lock switch which can be unlocked outside in case of emergency.Package Included:1* door lock