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. You may even want to choose a somewhat luxurious and relaxing ambience when attempting this puzzle. The key word is "music." 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. Recommended for 1 player, ages 12 and up. Made in China. Package dimensions: 4.750 x 3.000 x 1.750 inches. 2 pieces. Includes 1 Puzzle. Wipe clean with dry or damp cloth. Imported Material & Care Plastic Spot clean only