About the product
- EXERCISE YOUR THINKING: The goal is to remove all 9 rings that are trapped on the handle. Use recursive methods to solve the puzzle
- TRAIN YOUR PATIENCE: Take 341 steps to completely disentangle the linked rings. Need enough patience and skill, refer to the instructions in Chinese and English, use mathematical principles for solving the nine linked rings
- BRAIN TEASER PUZZLE: Great challenge for kids and adults, a hard and complex brain teasers puzzle for the beginners
- SMOOTH TO THE TOUCH: Smooth edges, delicate and not hurting hands. Main parts of the mind game wire puzzle were made of metal
- WELL-MADE: Durable, made of high quality metal raw materials. 8.5'' x 2.8'', ages 12 +
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