The Flashlight Japanese Puzzle Box was designed by Shokan Handa and was produced by Hiroshi Iwahara. Entered into the 2011 Karakuri Idea Contest. Crafted in Angsana, Cucumber Tree, Walnut and Oak, it measures 6.7 x 4.1 x 3.8 inches. Two finely crafted batteries are hidden inside the secret space. Very limited in number. Comes with instructions and gift box!