"[4-digit combination lock] Compared with 3-digit combination lock, 4-digit combination lock provides 10,000 combinations, which is more secure. The lock itself is strong and durable, and it cannot be removed by human. You no longer need to worry about security issues. [Sturdy and durable] This combination lock is made of zinc alloy. They are not only weather-resistant and rust-proof, but also strong, durable, and safe, with excellent resistance to cutting and sawing. [Anti-theft assistant] This digital combination lock is your first choice for anti-theft, so you don't have to worry about losing your items anymore. The numbers are easy to read and the dial is easy to turn, so locking and unlocking only takes seconds. [Easy to operate] The initial password is 0000, and you can easily set your own password by following the detailed instructions in the product description. Keyless design, you no longer need to worry about losing the key to open the lock. [Widely used] These padlocks are designed for indoor and outdoor use. Perfect for gyms, schools, backyards, tool boxes, employee lockers, sports lockers, and can also be used as outdoor locker combination locks for doors, gates and fences.