EXERCISE BALLS 1.75"   Chinese traditional medical theory of Jingluo,(regarded as a network of passages, through which vital energy circulates).
The ten fingers are connected withthe heart, on plucking the iron balls with fingers, the balls can stimulate the various acupuncture points on the hand.
If you keep exercising everyday months and years, you can get fine results of keeping your brain in good health. These balls are in crome color.