... Item No.: LK215(1.2*65CM) bike alarm cable lock,Patent: 200820164981.3 Can be used on: bike ,scooter ... (L) X 1.2(W) CM 3pcs steel security keys Package: hanging bag , MOQ :500PCS Carton size: 40 ... twist the key core as to make the lock pole lock the second step ,when you hear the sound ... When replacing battery , open the lock with the key , remove the two screws beside the lock hole , take out the rubber ...