SECURE & RESETTABLE: Smart 4-digit resettable combination chain lock, much than other 3 digit locks. Easy to set your own personalized number combination. BRAIDED STEEL: The bike cable is made of high strength braided steel wire, which can withstand 2.4KN tension and 7KN shear force, more strength and flexibility. helps prevent scratching more wear. SELF COILING & MOUNTING BRACKET: long enough for different users; Self coiling design easy to carry; Equipped with complimentary mounting bracket, the lock can be easily added to other objects; The quick installation button makes it install or remove the lock conveniently. CONVENIENT TO USE: Combination locking mechanism provide keyless convenience and set your own password by easy steps. With keyless convenience lock, you don't worry about lost the key and forget to carry it.Code design saves you from the hassle of carrying keys. The code is resettable - there are 10,000 combinations you can set, which makes the chances to crack the code