This indicator door lock adopts nylon material, high hardness and durable, easy to install. Red and green color will indicate whether the room is occupied, applicable to public toilet, restroom and bathroom. Features: The door lock is made of nylon, high hardness and durable, with smooth surface. Can be used for public toilet, restroom and bathroom to indicate that the room is vacant or engaged. Red(engaged) and green(vacant) color is easy to recognize, so it is a universal indication. Easy to install, suitable for partition door and bulkhead door. Applicable to public toilets such as airport, station, hospital, shopping mall and office building. Specification: Condition: 100% Brand New Material: Nylon Main Color: Black Applicable Plate Thickness: about 12~18mm Diameter: approx. 5.4cm / 2.13in Handle Size: approx. 3.2 x 7.8cm / 1.26 x 3.07in Weight: approx. 78g / 2.8oz Package List: 1 * Indicator Door Lock 2 * Screws Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、The door lock is made of nylon, high hardness and durable, with smooth surface 2、Can be used for public toilet, restroom and bathroom to indicate that the room is vacant or engaged 3、Red(engaged) and green(vacant) color is easy to recognize, so it is a universal indication 4、Easy to install, suitable for partition door and bulkhead door 5、Applicable to public toilets such as airport, station, hospital, shopping mall and office building