High Security Code Padlock: The padlock code consists of 4 digits, you can set any combination of numbers as a combination, there are many possibilities, 4 digit padlocks are more flexible and safer, you only need to remember the codes (we recommend taking notes or photos to back them up) . Resettable password: original password padlock password is 0 - 0 - 0 - 0. After the padlock is unlocked, turn the carabiner 90 counterclockwise to align with the notch, press firmly on the carabiner to hold it in place, then change the number, set the new code, and finally lift the carabiner back into place. Note: To reset the password, you need to remember the password you set last time (reminder: please be sure to save it after each reset, so as not to forget it). Durable and Portable: The main body of the 4-digit combination padlock is made of zinc alloy, which is corrosion-resistant, rust-proof and durable. The padlock weighs 110g and measures 80mm x 43mm x 20mm for easy portability. Widely used: The 4-digit combination padlock is sturdy and durable, no key is needed anymore, the combination can be reset, providing you with reliable protection, widely used in cabinets, lockers, gym locker rooms, tool boxes, large doors, etc. Easy to use: The original password of the password padlock is 0000, which is more secure than the traditional 3-digit password, with 4 digits and more possible combinations. Each combination lock comes with a user manual for easy access or to reset your own combination.