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