Key benefits Strong protection: Advanced password lock scrambles the digit display after each use to prevent code peeking and shoulder-surfing. Built to last: Unbreakable metal body, solid all-steel lock beam and zinc alloy buttons resist cutting, prying, and wear. Keyless convenience: 4-digit resettable combination eliminates lost keys and simplifies access management. Versatile use: Designed for doors, cabinets, and boxes across home, school, gym, and workplace settings. Features Advanced password scramble — the lock automatically scrambles digits after every use for improved code privacy and reduced risk of code theft. Resettable 4-digit combination — set and reset a personal code quickly to control who has access. Rugged construction — metal body claimed as unbreakable and engineered to resist cutting and prying; all-steel lock beam for extra strength. Durable controls — zinc alloy buttons built to withstand repeated use and heavy-duty environments. Keyless operation — no keys to lose, no need for replacement key sets or rekeying. How this lock solves common problems Prevents unauthorized access: Digit scrambling and a changeable 4-digit code make it harder for intruders to copy your combination. Eliminates key hassles: Keyless design removes the risk and cost of lost keys or carrying spare keys. Protects valuables: Heavy-duty materials and a solid steel bolt reduce the chance of forced entry, protecting tools, personal items, and important documents. Easy maintenance: Durable metal construction and zinc buttons reduce wear and the need for frequent replacement. Practical use scenarios School and gym lockers: Secure personal belongings without carrying a key; quick code changes for shared or temporary use. Workshop and storage cabinets: Protect tools and equipment with a heavy-duty steel beam and metal body that resist cutting and prying. Office or home storage boxes: Keep documents, electronics, and valuables safe with a resettable 4-digit code that you control. Performance and compatibility Designed to secure a wide range of doors, cabinets, and boxes where a reliable, keyless padlock is needed. Functions: scramble-after-use digit display, 4-digit resettable code, keyless entry. Materials: metal body, all-steel lock beam, zinc alloy buttons. Usage note Simple to set and reset your 4-digit combination for convenient, worry-free protection. Follow included instructions to establish and change your code as needed.