Multipurpose Universal Number Chain Cable Bike/Bicycle Helmet Lock Heavy Duty, Security Number Lock

The out layer is made of PVC material which is harmless to the human body. It meets environmental standards and requirements., The case of the lock is made of high-quality zinc alloy material. It does not crack at low temperature and does not deform at high temperature. It is a durable product., The cable locks are versatile and can be used not only on bicycles but also on any tool you want to be protected from, with a multi-purpose locking function., This lock does not need a key to unlock, as long as use the password can be easily unlocked, simple operation and easy to use., This lock is very compact and easy to use and carry.