key 4dThis is Blank key for 4D6D9D. Our common locker and cabinet only with 2 keys. If you need more keys can make copy yourself. each package with 9 keys, CL-2 CL-2PThe number of possible permutations for a given 4D number depends on the number of unique dits in the 4D number as shown in the table below. Number of Unique Dits in the 4D