Alarm disc lock protects your beloved motorcycle bike from thieves while at home or parking outside. Sensitive movement shock sensor will activate the alarm when vibrated to frighten thieves away from your belongings. The anti-drilling piece is added to the lock cylinder, which can effectively prevent the electric drill from violently destroying the lock cylinder.It is easy to lock with one-press operation, just press the button into locked status. Equipped with three anti-theft internal milling teeth keys, the keys of complex and changeable patterns are beautiful and wear-resistant.High grade metal body and cutting edge technology smooth surface makes the brake lock more durable, and keeps it working in rainy days.The length of lock is 8.7cm, the width of lock is 6.2cm, the height of lock is 3.3cm.Brake lock fits for various vehicles with up to 6mm disc brakes, such as motorcycles, electromobile, bicycle, motor, scooters etc.Item Name: Bike LockMaterial: MetalFeatures: Anti-Theft, Alarm Disc, MultifunctionalBatteries: 6 x AG13 Button Batteries (Included)Lockpin Length: 6mmDepth: about 60mmSize Details: Lock Size: 8.7cm x 6.2cm x 3.3cm/3.43" x 2.44" x 1.3" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bike Lock3 x Keys1 x Reminder Cable6 x Button Batteries1 x Wrench1 x Bandage1 x Manual