Kugel Puzzle Box is a clean and simple puzzle box from Jean Claude Constantin.
On first look it seems like a standard wooden box but you will notice the lid is joined to the body of the box. This is a fairly hard box to solve.
Kugel translates to English as ‘bullet’ or ‘ball’, perhaps that is a clue to opening it.
The box measures 196 x 135 x 73mm.
Please note the solution is not included.