ITEM NAME:Blocked Disc Lock Alarm stainless steel universal motorcycle safety B2R9 Blocked Disc Lock Alarm stainless steel universal motorcycle safety B2R9 Upper lock capability Ensuring the safety of your car well Color:Orange Dimensions: 6 x 8.3 x 3.3 (cm) Disk Width: 8mm Column Diameter: 6mm Material: Stainless Steel How to use it: 1. Lock the latch 2. Please insert the key, you hear a ticking sound, that is to say, the alarm system is already open, shake the lock, you will hear two ticking. 3. Shake the lock, the alarm sounds 4. Stop before unlocking the alarm, turn the key, the lock is disabled alarm Package content : 1 x lock alarm 2 x Key Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.