Classical Kong Ming Lock / IQ Training Toy / 3D Wooden Puzzle / Intelligence Gift / Educational Brain Teaser / Spatial Skills Training / Zhuge Liang / Can you solve it?

A toy to train IQ, most effective for kids and young adults. It was invented by a general in ancient China, Zhuge Liang. Pieces of woods are pieced together by making use of the empty space. It is packaged in a box.

Dimension: 11 cm x 8 cm x 1.7 cm

Material: Finished Wood