In the maker's words
This puzzle box has been rated as EXTREME in difficulty by the designer (Jean-Claude Constantin). The goal of the puzzle is to open the box, place something inside and be able to re-lock it again. Constructed of Sipo wood and metal, the puzzle measures 3.4 x 3 x 2 inches / 8.5 cm x 7.5 cm x 5 cm. Note: No solution is provided for this product.
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