High security: : This password lock has a 3-digit password design and 1000 sets of password combinations. It can protect your possession from being stolen or checked. The initial password is 000. High quality zinc alloy: : This keyless combination lock is made of zinc alloy, sturdy, precise, safe, corrosion resistant and durable. This can prevent thieves or access from anyone you are not expected to. Resettable and keyless: : The special design of this mechanical lock makes it easy to set and reset to your own favorite combination. With it, you don't have to worry about losing the key. Use widely: : L=20mm, approx. for cabinet thickness 0.5 to 12 mm/0.02 to 0.47 inch. L=30mm, approx. for cabinet thickness 19-23mm/0.75-0.9inch. This cabinet lock is suitable for school gym locker, sports locker, fence, tool box, door, case, hasp storage, mailboxes, shoe cabinets, staff cabinets, etc. After-sales service: : We strive to provide you with high quality coded security lock and the best customer experience. If you have any questions, please feel free to contact customer service, our customer service team will answer your doubts at the first time. I wish you a happy shopping and a happy life.