This is a very helpful for the development of intellectual toys for children and adults.

Features: This is a very helpful for the development of intellectual toys for children and adults Brand new and high quality. Come with 7 sets different puzzle rings with different level of difficulty. Metal brain teaser condenses with traditional Chinese culture and they are quite interesting. Good for creative thinking and improve both your IQ & EQ. Package Contents: 1x 7 Sets IQ Brain Teaser Toy Discounted at only: US$ 5.01