Designed for the 2016 Karakuri Puzzle Party in Hakone, Japan. Crafted in Cherry, Magnolia, Maple and Karin woods. Measures 62 x 62 x 62 mm. (2.44 x 2.44 x 2.44 inches ). Requires over 20 steps to open. With an ingenious opening mechanism it will arrive in bubble wrap with scan of opening instructions.