Made of stainless steel material, anti-rusty, with the smooth very durable. mounted with bolt-through fixing. Smooth trouble-free operation. Vacant (Green) / Engaged (Red) indicator shows whether the room is occupied. Scope of application: emphasis on elegant, clean, wear-resistant public places, such as: airports, railway stations, hospitals, offices, restaurants, shopping malls, offices and other public toilets., Weight: 0.57 Pounds, Manufacturer: Zunate