Intelligence puzzle toy originated from ancient China. It has more than thousand years history. The ancient and wisdom wooden toys IQ also be called kongming lock or luban lock in China.
One-of-a-kind: Every Brain Teasers is completely unique, handcrafted from premium grade, fully organic wood by the finest master craftsmen using only time-honored traditional methods and techniques.
The challenge in this puzzle is to assemble the three wooden pieces into the 3D X shape, this puzzle helps to improve the engineering skills and focus.