[Anti-rust material]: Padlock zinc alloy body, effective anti-corrosion and anti-rust, durable [High security]: The padlock code consists of a 4-digit password , there are 10,000 possibilities, so you need to remember your password (recommend taking notes or taking photos to record) [Strong and reliable]: The Padlock suitcase has a deepened keyhole, no fear of violent unlocking and high security factor [Wide use]: Outdoor padlock is small and portable, with a wide range of applications, unrestricted, exquisite and durable. Can be applied to lockers, gymnasiums, doors and windows, suitcases, drawers, etc. [Easy to use]: The original password of Code Padlock is 0000, easy to use or reset your own password Color: Black Size: 43*49.5mm Quantity sold: 1 piece 1. The initial password is all 0, align the side arrow and pull the lock beam up. 2. Rotate the lock beam 90 degrees counterclockwise, so that the convex point of the lock beam is aligned with the groove of the lock body 3. (Very important!!! First understand and then modify to avoid code errors) (It is recommended to modify 1000 for the first time, in order to become familiar with the method of use) Press the lock beam until at the end, make sure you don't let go, and turn it at the same time Align the side arrow with the desired password. 4. After changing the password, pull the lock beam up and rotate it 90 degrees to the original position. password has been updated. Repeat the steps above for the next edit. About chromatic aberration: The goods sold are all taken in kind, but due to different lighting, monitors, etc., there will be a little color difference, which is a normal phenomenon, not a quality problem! About size: The dimensions of the products sold are all measured manually. Due to different measurement methods and tools, there may be an error of 1-2mm, which is normal!