The indoor padlock is best used as a school and gym locker lock, providing protection and security against theft Set your own directional combination lock for quick and easy recall Easy Combination Faster combination entry than a standard combination lock using up, down, left or right directional movements 1/4" (6 mm) shackle in diameter with 1 in (25 mm) length, 3/4 in (19 mm) width Set your own directional combination Set your own directional combination lock for a quick and easy combination recall. The combination can be reset at any number of moves in any sequence. The lock can be opened with one hand without looking for ease of use. Troubleshooting help Sometimes step 3 of the instructions is overlooked. Try entering your old and new combinations in a long chain of movements. Enhanced security Stalling is defined as violating a lock by inserting a foreign object into the locking mechanism. Master Lock padlocks feature specially designed technology to protect the latch assembly so that there is no target for the shim tool to hit, making the lock more difficult to undo. p> Packing quantity: 1 pcs