Burr Box - Wooden Puzzle Brain Teaser

The puzzle looks like a box, and when in the assembled position, you will not be able to see that it is a burr puzzle inside. 

When this is in the unsolved position, you will find there are 6 pieces. 

There are notched sticks attached to each of the 6 sides of the box. 

They will interlock when assembled properly to reform the box. 

This is essentially a 2x2x2 classic burr puzzle with the added complexity of the sides being attached. Very nice puzzle.