Properties:Safety anti-theft lock universal for motorcycle, scooter, bike etc.It works by locking the disc brake.Simple and comfortable operation. Click on the lock cylinder, it will be locked.Support alarm alarm function. It will sound an alarm when the lock is shocked by someone.Specifications:Color: black Material: metalLock pin: 5.5 cmAlarm decibel: 110dBPackage size: 8.5 * 6 * 4cm Package weight: 562g / 19.8ozPackage include:Package 1: lock + three keys + screwdriver Package 2: lock + three keys + screwdriver + spare batteryPackage 3: lock + three keys + screwdriver + lock bag + batteryPackage 4: lock + three keys + screwdriver + lock bag + battery + rope