Patent Lock Cylinder Design: The steel circular lock cylinder cannot be unlocked with tinfoil, crochet hooks etc, and is stronger and resistant to violent unlocking. Each lock is equipped with 3 integrated keys, and other people who have purchased the same style lock cannot open your lock.
Perfect for anti-theft of bikes, ebike, motorcycles, scooters, etc. To maximize the alarm function, please lock the padlock on the frame of the vehicle itself, preferably on the wheel or hub frame. Even if the chain is cut, the padlock can still feel the vibration and continue to sound the alarm.