New Digital Intelligent Security Mechanical LockFeature‎:‎ 100% new and high quality‎.‎Quantity‎:‎1Scope‎:‎ This is mainly used in the locks on interior doors‎,‎ using the British standard small bolt‎,‎ you can directly replace the ball lock‎,‎ all doors can be installed iron gateSize‎:‎ 16cm * 10.5cm * 5cmMaterial‎:‎ pure zinc alloy build Durable‎,‎ never rust Applicable door thickness‎:‎ 35‎-55mm‎,‎ 60mm margins doorPure password to open the door‎,‎ do not worry about the inconvenience of lost keys Package Content‎:‎ 1X New Digital Intelligent Security Mechanical Lock 1X English User Manual