SET YOUR OWN COMBINATION: The 4-digit combination padlock takes 10 times longer to crack than a 3-digit padlock. You can set your own combination with 10,000 unique options that you know are more reliable and secure. EASY TO USE: Unique side window design and large numbers make it easy to read. Moreover, ZHENGE Combination Locker Padlock is equipped with an advanced damping device inside which allows each dial to engage for better accuracy and code alignment feeling. Setting or resetting in just 6 steps is easy by following the instructions included on the back of the packaging. STURDY CONSTRUCTION: The heavy duty digital padlock comes with high strength zinc alloy bodies. strength, hardened steel shackles and a caft qualified manhood. They are weather resistant, resistant to cutting and sawing. They are designed to be the most durable code locks for you. WIDE APPLICATION: The combination padlock is perfect for indoor and outdoor tasks such as gym lockers, school and & employee lockers, canbinets, pantries, tool boxes, door & door hasps, garages, sheds, fences and general storage. NOTE: This is a large or medium size code padlock (1.73*0.86*3.11inch, shackle diameter: 6mm), not really suitable for zipper holes.