Safe and repeatable setting: The smart 5-digit password can reset the combination chain lock, which is more secure than other 4-digit password locks. Easily set up your own personalized digital combination. Braided steel and PVC coating: The bicycle cable is made of high-strength braided steel wire, which can withstand a tension of 2.4KN and a shear force of 7KN for greater strength and flexibility. Protective vinyl coating (PVC) helps prevent scratchesand is more durable. Self-winding and mounting bracket: 4 feet by 1/2 inch (about 1.3 cm) cable is long enough for different users; self-winding design makes it easy to carry; equipped with free mounting bracket, lock can be easily added to other items ;Quick install buttonto install or remove the lock. Easy to use: The combination lock mechanism provides keyless convenience, and you can set your own password through simple steps. With the key-free convenient lock, you don't have to worry about losing the key and forgetting to carry it. The code designsaves you the trouble of carrying keys. The codes are resettable-you can set 10,000 combinations, which may only be 1/10,000 of crack codes. The default code is 00000. Multi-purpose: The cable is 4 feet long (about 1.2 meters), which is enough to lock 2-3 bicycles together, or to lock your bicycle on trees, gates, fences, thick poles, etc. This lock can also be used on motorcycles, scooters, barbecue grills, ladders,doors, lawn mowers, etc.