Material:high quality solid wood, corrosion resistant, not easy to crack.Eco-friendly, as well as light weight and durable. Intellectual Toys: Not only can improve kids' 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: 4.5 x 4.5 x 4.5 cm Weight: 350g.a
