SET YOUR OWN COMBINATION: The 4 dial combination padlock takes 10 times longer to crack than a 3 digit lock. You can set your own combination with 10000 unique options that you know they are more reliable and safer. EASY TO USE: Unique side windown design and large numbers bring easy reading. Moreover, the ZHENGE combination locker padlock is equipped with an advanced damper device inside makes each dialing click into place for better accuracy and feel in code aligning. 6-step-only setting or resetting is easy following the instructions included right at the back of package. STURDY CONSTRUCTION: The heavy duty number padlock outdoor comes with high strength zinc alloy bodies, hardened steel shackles and skilled caft manship. They are weatherproof, resistant to cutting and sawing. They are designed to be the most durable code padlocks for you. WIDE APPLICATION: The padlocks combination are perfect for both indoor and outdoor tasks such as gym lockers, school & employee lockers, canbinets, pantries, toolboxes, gate & door hasps, garages, sheds, fences and general storage. NOTE: This is a big or medium sized number lock (1.73*0.86*3.11inches, shackle dia: 6mm), not really fit for zipper holes.