Good for innovative thinking and improve both your IQ & EQ.
Intelligence game toy.
Metal brain teaser condenses with traditional Chinese culture and they are quite interesting.
Come with 7 sets different puzzle rings with different level of difficulty.
A good choice to train your brain at any leisure time or send as a gift to your friends.
Ideal for children.
Polishing treatment make the surface smooth and no-burr,don't hurt your hands
Helps to exercise brains, improve problem solving abilities, relieve pressure and more.