1. This is an anti-theft security lock that is universal for motorcycles, scooters, bicycles, etc.2. It works by locking the disc brake, which helps to stop the vehicle's movement and ensure the vehicle's safety3. Operation is simple and convenient. Just click the lock cylinder and it will be locked4. It has a warning alarm function. An alarm will sound if someone touches the lock5. It is made of high-quality metal, durable and not easy to rust.Comes with a small wrench and two keys, so it is very economicalSpecification:Features:This is an anti-theft security lock, universally suitable for motorcycles, scooters, bicycles, etc. It works by locking the disc brake, which helps to stop the vehicle's movement and ensure the vehicle's safety. Operation is simple and convenient. Just click the lock cylinder and it will be locked. It has a warning alarm function. It emits an alarm sound when the lock is touched by someone.It is made of high-quality metal, durable and not easy to rust.Comes with a small wrench and two keys, so it is very economical.Specifications:Material: MetalColor: Red, Black, Blue, Yellow (Optional)Battery: 6 pcs * LR44 button cell battery (built-in)Alarm Decibel: 110dB Lock Size: 89 x 60 x 31mm/3.5'' x 2.36'' x 1.22''Package Weight: approx 335g/11.8ozInstructions:Press the lock cylinder to lock it with a beep, and then it will enter the alarm mode within 10 seconds, accompanied by a vibration and three beeps. If the lock is shaken, another shake will trigger an alarm after 5 seconds, and thereafter continuous vibration can trigger a continuous alarm. If no vibration occurs within 10 seconds after the alarm, the alarm will be triggered again.Battery Replacement: When replacing the battery, first loosen the screws on the bottom of the lock, and then remove the cover to replace the battery.Package Includes:1 x Lock2 x Key