1 unit. Padlock with alarm for the motorcycle front brake or clutch lever. Its loud 120dB alarm will go off when motion sensors detect a constant vibration. It uses a CR2 lithium battery that is easy to install and replace. Battery included. With 3 keys. The lever lock with alarm has a diameter of 33 mm in the grip and 8 mm in the lever. The height is adjustable, which aids in almost universal application. 1 unit. Padlock with alarm for the motorcycle front brake or clutch lever. Its loud 120dB alarm will go off when motion sensors detect a constant vibration. It uses a CR2 lithium battery that is easy to install and replace. Battery included. With 3 keys. The lever lock with alarm has a diameter of 33 mm in the grip and 8 mm in the lever. The height is adjustable, which aids in almost universal application.