To create a puzzle of the Phantom in the 1960s United States patent. Design of the original image of the string with the violin's Joseph L.Litle. And because there were hand made by Mr. t. muroi and Mr. Nobuyuki yoshigahara.　 "The cause" and is? "Has caused" and the adult inspiration and logic to solve the puzzle. The Mission's "off." And "back to you". Simple, but profound. And take full advantage of the head and hands, I try to challenge you. Product specifications: ages: 6-year-old-difficulty: 3 (out of 6) size: 75 × 119 × 45 (mm) weight: 129 g