The size is showed in comparison with the other one. My fingers show the size of the other one.
This safe i made from the "IPROBERRY" version. The cage on the top is to hold the "keys". To build the original safe go to http://www.instructables.com/id/Lego-Safe-1 . There are 2 locking mechanisms in this version too. There are also different types of holes that fit the keys but do nothing to confuse others. The right side is the 2nd mechanism and the back is the "safe" part