This sizeable puzzle box requires you to maneuver the key wooden "keys" on the top of the box in order to open it. There is a plexi-glass covering that has several cutouts which allow you to see the inner workings without losing the pieces. This top will release when you have successfully slid the keys into the right positions.
Made in laser-cut wood, acrylic, and stainless steel. Jean-Claude Constantin lives in Germany, where he designs and manufactures many different wood and metal puzzles, as well as magic tricks and other intellectual toys and games.