1.HIGH QUALITY MATERIAL:Bicycle lock is made of braided steel cable and coated with PVC, which helps prevent corrosion and cutting, and is more durable. Hardened zinc alloy lock cylinder is more secure for protection and better anti-theft effect. 2.RESETTABLE AND SAFE:Offering 100000 combinations for added security, smart 5 digit resettable combination chain lock, more secure than other 4 digit locks, easy to set your personalized combination. 3.SELF-COILING AND MOUNTING BRACKETS:It is long enough for different users; Self-rolling design, easy to carry; Equipped with a free mounting bracket, you can easily add the lock to other objects; Quick installation button, easy to install or remove the lock. 4.EASY TO USE:bike chain lock offers keyless convenience and set your own code in simple steps. You dont have to worry about losing your keys or forgetting to carry them. The password design saves you the hassle of carrying keys. Passwords are resettable - you can set 100,000 combinations, which gives a 1 in 10,0000 chance of cracking the password. The default code is 00000. 5.MULTIPURPOSE:bike cable locks are enough to lock 2-3 bikes together, or lock your bike to trees, gates, fences, railings, etc. The lock can also be used on motorcycles, scooters, strollers, skateboards, grills, ladders, doors, sports equipment, lawn mowers, and more.