Description
1. Intelligence toy is an old and traditional Chinese intelligence game and has been popular since ancient times. Hiding very mysterious mathematical and physical principles, it is easy to separate within a short time, while difficult to reassemble2. A great challenge to your intelligence! You take a photo as reference before separation if you are not sure to success.
3. Durable and reliable safe non-toxic
4. Material: Natural high quality wood
5. Size: 4.7 x 4.7 x 4.7cm
