The Nova Puzzle Box is a design from Infinite Loop Games.
An impressive looking box you must try and open the box by moving the different sliding pieces. There are 15 steps to solve this and it is likely to keep you busy for a while.
The compartment could be used to hold a small object or a note.
Made from maple in the US this box measures 140 x 140 x 140mm. The hidden compartment is 51 x 35 x 35mm.