Rest assured that your valuables will be safe inside the Gardall GFL1337 B-rated depository safe. With its 0.5 inch steel doors and punch resistant bolts this safe will deter any forcible entry. This safe features a Group II combination lock and triple boltwork with independent re-locking device. The re-locking device activates if the back cover is knocked off the lock, stopping any bolt withdrawal. If you need to store items quickly you can use the top drop envelope door while the bottom door allows a more secure option for overnight storage. The doors on this safe are interchangeable. If you are looking for more storage space for your deposits, check out the GFL1337SD.