4 Digit Combination Lock Unlike 3 digit combination, it provides 10000 code combinations which is harder and safer than the previous version. In addition, the latch of this lock is strong enough that can't be removed or cracked by human force. You needn't worry the security any more STURDY CONSTRUCTIONMade of high strengh zinc alloy and hardened steel, the combination padlock is sturdy and compact, offering extra resistance to cuting and sawing. Moreover, the premium material is waterproof and aniti-rust, making it very good outdoor combination lock. Wide Use This portable size combination lock suits for indoor and outdoor use. You can use it for gym, school, employee lockers, cabinet, toolbox, large luggage bags etc. You also can feel at ease to use it outside on doors, fence gates, sheds, garage, hasps and so on. Hassle Free OperationEasy to set and reset your personal password, once you've set the combination, you're safe and sound. No more fiddly keys.