The Perfect Locker Combination Padlock The SX-575 combination lock for lockers is the best choice for everyday use. It is an all metal, four-dial combo lock that very sturdy and secure. The dials are large making it easy to read and operate. With over 10,000 possible combinations know that your possessions will be safe. Dual access of this heavy duty lock, through combination or key, makes it the perfect choice to manage and access your locker. No Hassle Due To Lost or Forgotten Combinations Never again throw away a combo padlock due to a lost combination. The master key function allows not only overriding the combination, but also allows lost combination discovery and reset. These functions make this locker padlock ideal for institutions where the master key is available for administrative purposes. Setting the Gym Padlock Factory Default is 0-0-0-0 Open the shackle and rotate it 90 degrees until the notch on the shackle lines up with notch in the shackle opening Press down and keep the shackle pressed down while setting the combination dials to your desired code Let go of the shackle and your outdoor combination padlock is ready to use! Scramble the dials on the combination padlock to lock Padlock Master Key Instructions Insert master key Turn the key 90 degrees to open the lock and release the shackle Turn the dials until they stop The dials are now showing the combination your lock is set to After you have discovered the code, close the shackle and remove the key Your lock is now ready for use and can be reset. SX-575 Gym Locker Lock Dimensions Shackle Diameter: ¼” Shackle Clearance: 1” Lock Height (including shackle): 3-3/16” Body Width: 1-5/8” Body Height: 2”