This Akio Yamamoto creation consists of two pieces fashioned after the image of intertwining Bach melodies. Following the dynamic build-up is an inspirational finale when the two pieces elegantly release from each other. Hanayama is known worldwide for challenging puzzles and quality manufacturing. Can you take the pieces apart, then put them back together again? Hanayama cast metal brain teasers have 6 levels of difficulty, and each puzzle is Mensa-rated. Level 4 puzzles are considered challenging by most puzzlers.Details:Level 4For 1 playerFor ages 12 and up