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In our country, some people exercise their fingers with wooden balls, stone balls and walnut balls for a long time. Later, some rich and powerful nobles developed them into glass balls and jade balls, and gradually evolved into solid iron balls. These balls with different materials and playing with fingers gradually formed the early fitness balls in China. Because iron ball plays an important role in the development of iron ball culture with a long history in China, people used to call it "iron ball sport".

Specifically, iron ball began in the Song Dynasty. At first, it was a solid ball, also called an iron egg, which was a weapon for both fitness and self-defense. According to the data, the solid ball was changed into a hollow ball in Jiaqing period of Ming Dynasty, and it became popular in Qianlong period of Qing Dynasty. Its function of dredging meridians and activating qi and blood by stimulating hand acupoints is gradually recognized by people.

Baoding, China is the main production base of iron balls in China at present. The present iron ball is developed through improvement and innovation on the basis of ancient production technology in Ming and Qing Dynasties, with finer technology and more scientific structure. The materials of the ball are more diverse and the surface patterns are richer. The internal structure is becoming more and more complicated. There is a ball in the ball, and the soundboard is installed in pairs, commonly known as "a man and a woman". When you hold it in your hand, the sound is different, high and low, crisp and pleasant, which can not only adjust your body and mind, but also cultivate your temperament in the crisp and pleasant sound of iron balls.