Adopted zinc alloy and stainless steel, thisindicator door lock is sturdy and durable for long use. Red and green colorwill indicate whether the room is occupied, applicable to public toilet,restroom and bathroom.Features:Made from zinc alloy and stainless steel,this bolt lock is sturdy and durable for long use.Can be used for public toilet, restroom andbathroom to indicate that the room is vacant or engaged.Red(engaged) and green(vacant) color iseasy to recognize for universal indication.Easy to install, suitable for partitiondoor and bulkhead door.Applicable to public toilets such asairport, station, hospital, shopping mall and office building.Specification:Condition: 100% Brand NewMaterial: Zinc Alloy + 201 Stainless SteelMain Color: SilverIndication Color: Red, GreenUniversal Suitable Plate Thickness: about 12~18mm/0.47~0.71inDetailed Size: Shown as PictureWeight: Approx.207g/7.3ozPackage List:1 * Indicator Door Bolt Lock with ScrewsNote:1. Please allow 0-2cm error due to manualmeasurement. Thanks for your understanding.2. Monitors are not calibrated same, itemcolor displayed in photos may be showing slightly different from the realobject. Please take the real one as standard.