ZincIndicator to show either Vacant or Occupied: This product would be great to avoid having to knock on the door anytime the door is shut. Good for toilets/shower cubicles & bathrooms.With this engaged indicatior lock, your customer will not spend long time to find where the toilet is, especially recognize which room is available. Vacant (green) / engaged (red) indicator will easily shows whether the room is occupied.Package included: 1pc/2pcs x indicator bolt toilet door lock with keep and fixing.Quality Metal Material: Toilet bathroom lock vacant/engaged latch indicating dead bolt is made of polished chrome or satin nickel(two types are available). Durable, wear-resistant, and has a long service life. Trouble-free operation, the surface of door lock is mounted with bolt-through fixing, thick and solid. Size: about 38 x 13 x 35 mm/1.49 x 0.51 x 1.37 inch.Convience and Efficiency: This product would be great to avoid having to knock on the door anytime the door is shut. The vacant (green) / engaged (red) indicator will clearly tell everyone that the restroom is occupied from the distance. There is no 10 minutes waiting in front of the restroom any more. Easy installation,the latch can be fitted directly to cubicle or flush panel door, easy to install and convenient to use.Wide Application: Useful for toilets/shower cubicles & bathrooms. Emphasis on elegant, clean, wear-resistant public places, such as: volleyball facility, gym, airports, railway stations, hospitals, restaurants, shopping malls, offices and other public toilets.Helpful Latch Indicating Lock: Don't worry you can do nothing if the door is closed by accident. There is an emergency hole outside to open the locked door when it gets locked accidently. Come with smooth trouble-free operation, smart design emergency lock switch helps it can be unlocked outside in case of any emergency.