Due to this Puzzle being crafted as a limited edition or run, it is no longer available for sale. Regrettably we do not think it will be back in stock. Please view our other hard to find puzzles on our Karakuri Trick Box Page. Created by Hiroshi Iwahara A NEW Limited Edition version of the Secret Base box. Very ingenious opening mechanism. Measures 3.54 x 3.54 x 2.95 inches Crafted in November 2011 Made of Oak, Walnut, Birch and Bubinga woods. Stamped with the Crafter's hanko Comes with opening instructions and a gift box. Read more about this fantastic Puzzle on our blog, "The Puzzle Box Perspective."