Jaswass Wooden Brain Teaser Puzzle Kongming Lock Wood Block Cube Jigsaw As Gift

Specifications: 1. Name: Dice Shape Brain Teaser Puzzles 2. Material: Wooden 3. Paint material: environmentally friendly water-based paint 4. Function: unlock the ring and lock 5. Product category: Kongming lock / Luban lock 6. Product weight: about 50-100G (single) 7. Product about 6 6 6cm/ 2.3 2.3 2.3in 8. Age: more than 3 years old Feature The lock may seem simple, but it contains a lot of mysteries. Easy to disassemble, difficult to re-assembly. Not only can improve your ability, and even can become a significant plan. Suitable for children and adults. With your brain, exercise your patience, can not solve the knot, but as long as the owner of the structure, must be resolved. Caveat The child must be used under the supervision of an adult. Do not drop each other. Do not put toys in your mouth, let the children do not swallow a small part of the toy. Maintenance: Be careful to avoid drying and washing. What is KongMing Lock: This is a brain teaser toy created by Chinese inventors KongMing (also call Luban lock). The lock may look simple, but it contains lots of mysteries, to challenge your mind and test your nerve. Material: Made of wood, 9 pieces include; Maintenance: Handle with care, avoid desiccation, being washed. Difficulty: Medium to Very Hard. Easy to take apart and difficult to reassemble. Play this toy can exercise fingers and spirit coordination. Great fun for all the family, especially for children. A wonderful gift for children. A Chinese ancient and traditional intellectual game,which has the very secret of mathematical principles and physical principle,help to improve intellectual development.