YGZN 9pcs Wooden Blocks Brain Teaser Puzzles Set 3D Interlocking Wood Jigsaw Games - IQ Challenge Toy Mind Game Gift Set for Kids and Teens (Wooden Puzzles 9Set)

• Intelligence puzzle toy originated from ancient China which called Kong Ming Lock. Wooden game with interesting logical thinking and perfect for development of brain.
• One-of-a-kind: Every brain teasers toys are completely unique, 9 different design, 9 different fun. handcrafted from premium grade, fully organic wood by the finest master craftsmen using only time-honored traditional methods and techniques.
• Challenge - Challenging toys, Easy to take it apart but difficult to assemble, including instruction manual.Stop reading instruction if you don't want to have the challenge ruined. Enjoy the satisfaction of brain teaser puzzle challenge well done.
• Help children exercise logical thinking and hands-on ability, improve spatial imagination and creative thinking.A good gift for all ages, Effective release of adult work pressure, much fun to play with it.
• Dimension - 9 pieces brain teaser puzzles are made of bamboo with smooth finish. Mini Size: About 4.5 x 4.5 x 4.5 cm per puzzle, Weight: 350g in all. Easy to carry.

YGZN wooden brain teaser puzzles toy: --3D wooden puzzles, also called Luban Lock or Kongming Lock, are based on the principles of the ancient Chinese construction of buildings and later furniture making. --The components of burr puzzles fit together by means of hidden joints, and they stay together without the use of glue or nails, allowing them to be easily taken apart and reassembled. --The sticks intersect each other, but they are also interlocked so that they stay together without falling to pieces. --Brain teaser puzzles come in different shapes with different internal structures. --The puzzle may look simple, but it contains lots of mysteries, which require much patience and an understanding of spatial relationships to put back together. --This Kong Ming / Lu ban lock cube wooden puzzle toy can exercise fingers, develop patience and intelligence. A great toy fits for all ages. --Parents and kids can both join together in the fun, it is also good to boost the relationship between parents and kids. Small Parts Disclaimer: These toys contain small parts, not for children under 3 years in case of swallowing or choking . We do not accept any responsibility or liability for misuse of this or any other products. YGZN Quality Assurance: -Not satisfied with the product, no question asked, we provide full refund or a free replacement. -We provide 24 hours customer service. Any questions, We will Provide you a satisfactory solution.