1Simply connected to the disk, it is difficult to remove without the key, effectively prevent thieves. 2The operation is simple and convenient, just click the lock cylinder, it will be locked. 3The alarm sound reaches 110db, which can effectively alert the thief. 4Excellent sealing performance, it has super waterproof ability, durable to use. 5Suitable for motorcycles, electromobile, bicycles. Suitable for disc brakes up to 0.3in thick. 1 x Lock 2 x Key 1 x Screwdriver 6 x Button Battery 1 x Disk Lock Reminder Cable (4ft) 1 x Storage Bag Condition: Brand New_x000D_Item Type: Motorcycle Lock _x000D_Material: Aluminum Alloy_x000D_Battery: LR44 Button Battery, 160mAh (include)_x000D_Application: Suitable for motorcycles, electromobile, bicycles. Suitable for disc brakes up to 7mm/0.3in thick 1Simply connected to the disk, it is difficult to remove without the key, effectively prevent thieves. 2The operation is simple and convenient, just click the lock cylinder, it will be locked. 3The alarm sound reaches 110db, which can effectively alert the thief. 4Excellent sealing performance, it has super waterproof ability, durable to use. 5Suitable for motorcycles, electromobile, bicycles. Suitable for disc brakes up to 0.3in thick. 1 x Lock 2 x Key 1 x Screwdriver 6 x Button Battery 1 x Disk Lock Reminder Cable (4ft) 1 x Storage Bag