Description: As a kind of Chinese traditional puzzle game, Kongming lock carries with mysterious mathematical and physical principles A really good tool for fostering kids and adults' logic thinking Multifunctions: relief stress, develop intelligence, hand-eye co-ordination skills, foster logic thinking, parent-child interaction and more. All in all, this toy set is to make your life quite interesting A wonderful toy set for spare time palying Size Chart: 12.2*12.2*2.2cm Package Includes: 1 x Kongming Lock Toy
