In the process of playing walnuts, people exercise their hands by rubbing, kneading, pressing, stabbing, kneading, rolling, etc. by using the spikes, protrusions and edges of walnuts, and press the acupoints on the palms to stimulate the reaction areas on their hands, so as to achieve the effects of relaxing muscles and tendons, dredging collaterals, promoting blood circulation and removing blood stasis, and strengthening the body.
Because walnut skin is thick and firm, after long-term hand rubbing, sweat infiltration, oil penetration and time polishing, it finally becomes a natural art with bright inside and red outside, but agate is not better than agate. In the minds of people who play walnuts, walnuts are not only fitness equipment, but also a work of art, which is the apple of their eye that integrates playing, fitness and viewing.