High Security Padlock: The 4 digit number padlock offers 10,000 unique combinations for you to set your own code, which is 10 times safer than a three-digit. EASY TO USE: Setting or Resetting is easy following the instructions included right at the back of package cardboard. Big numbers and side window design bring easy reading. Moreover, gym padlock for locker is equipped with an advanced damper device inside makes each dialing click into place for better accuracy and feel in code aligning. Seconds to open and close the lock in your daily use. STURDY CONSTRUCTION: With high strength zinc alloy body, hardened steel shackle and skilled craftmanship, the heavy duty padlock combination is weatherproof, resistant to cutting and sawing. It is designed to be the most durable code lock for you. WIDE APPLICATION: The 4 number lock is perfect for both indoor and outdoor use such as gym lockers, school lockers, employee lockers, toolbox, cupboard, pelican case, bacyard garden gate, fence gate, shed, garage door, generable storage box, etc