PREMUIM QUALITY: Each Zhege outdoor combination lock is well designed to be the most durable digital lock with code on the market. With high strength zinc alloy body, hardened steel shackle and excellent caft manship, the combo lock comes in small compact size but stands heavy duty. They are not only perfect weatherproof rustproof outdoor combination padlocks but also sturdy high-security lockers locks with excellent resistance to cutting and sawing. 10,000 COMBINATIONS: The 4 number padlock offers you 10,000 unique combinations to choose from. It is 10 times harder to crack for the thief than a 3-digit that you know they are more reliable and safer. EASY TO USE: It is very easy to set and reset your own combination following the instructions which are always included. Numbers are easy to read and maneuver, make it seconds to lock and unlock the keyless combination lock in daily use. WIDE APPLICATION: The 4 dial padlock with combination is perfect for both indoor and outdoor uses such as gym locker, school employee locker, canbinet, pantry, toolbox, gate door hasp, garage, shed, fence and general storage.