The Karakuri Secret Base Puzzle Box has not one, but two secret compartments! Can you discover both hidden spaces? The objective is to figure out how to maneuver the box, sliding pieces into different configurations, until the first inner chamber is revealed. Afterwards, there is still another compartment to discover. The divine surface pattern is Muku Yosegi, a mosaic woodworking style applied to small, hand-crafted pieces such as trays, boxes and chests. This puzzle also comes with instructions and a gift box.
Famous puzzle designer Hiroshi Iwahara has spoken highly of this particular box, commenting "Do you know the product ‘CUBI’? It was made by my boss, whom I greatly respect, Mr. Akio Kamei. It's a CUBE box that has BINARY motion. It's one of the most difficult Karakuri pieces to open. I was impressed by this box and was determined to create Karakuri. Complex mechanisms and simple expressions produce functional beauty. I'll create those products."