Wooden Puzzle Game Brain Teasers - 3D Puzzles for Teens and Adults - Wooden Logic Puzzle.  Ball Brain Teaser Intellectual Removing and Assembling Puzzle

• Material: high quality solid wood, corrosion resistant, not easy to crack. Eco-friendly, as well as light weight and durable
• Intellectual Puzzle: Not only can improve intelligence, improve proble-solving ability, but also relieve pressure, relax mood and gain pleasure
• Great Gift: Wooden puzzles may look simple, but they contains lots of mysteries, easy to disassemble but difficult to assemble, each wooden puzzle is special and unique, a best gift for adult
• When assembling requires careful observation and thinking, analyze its internal structure. Our mind puzzle help to exercise brain, develop intelligence, improve problem-solving ability and also relieve pressure
• Mini Size approximately: 4.5 x 4.5 x 4.5 cm； Weight: 300g.