The empty/engaged bolt door lock indicator latch can identify which room is available, so your guests won't spend a long time looking for the toilet.The latch indicator lock is made of zinc, polished chrome and satin nickel, and is secured by surface mounting bolts.It can be installed directly on compartments or flush panel doors and is very durable.The vacancy (green)/participation (red) light will easily indicate whether the room is occupied or not, which can avoid knocking when the door is closed, which is very convenient.The emergency lock switch is very suitable for toilets, showers and bathrooms or public places, such as: volleyball courts, gymnasiums, airports, stations, hospitals,restaurants, shopping malls, offices and other public toilets.The indicator door lock can operate smoothly and smoothly.If the door is accidentally closed, there is an emergency hole on the outside, which can open the locked door when it is accidentally locked, helping to unlock it outside in any emergency situation.emergency efficiency situation. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store