A quality four dial combination lock with Zinc alloy lock body. Resettable with upto 10000 different combinations. Master key inserted in the base of the lock. To view see the second image.
The key performs the following 2 functions:
1) Use the key for emergency unlocking and locking without knowing the combination.
2) In cases where the combination has been forgotten. The key can be used to discover the preset combination.
Please contact us to order this product or if you require any further details.