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. The LARGEST Puzzle Box Crafted. Stamped with Mr. Yamanaka's hanko! Only 15 pieces were available for sale! OUTSIDE Dimensions * 14.375 x 10.125 x 4.75 inches INSIDE Dimensions * 12.5 x 8.875 x 4.25 inches Requires 4 Steps to open. Will arrive with opening diagrams.