Features:Easy to use、 push-down lockingWith an in-built alarm、 Automatic alarm resetWaterproof design、 Never afraid of wind and rainSafety and Convenient、 Mercedes-benz super class B strong anti lock coreShake、 shock、 move or vibrate sensorAlarm working when touched or tampered with in any wayResistant corrosion、 Shake proof、 resistant bad weather、 resistant physical destroyUsed For the brake disc of Motorbike、 Motorcycle、 bike、 Electromobile、 scooter、 etcDimensions: approx. 8.6 x 7 x 3cmPin diameter: 6.0mmDisk Lock Dimensions: 87*60*34mmKey Cyliner: blade tumblerMaterial: Zinc alloyAlarm loudness: Siren of 110 DB (decibels)Alarm current<50mA、 Quiescent current<10mA Package includes:1 x Motorcycle alarm disc brake lock2 x Brass security key