It is made of cattle and sheep hip bones. When the fan-shaped bone plate is playing, the player holds the narrowest part of the lower end of the hip bone, and holds a plate in each hand. The two plates slap each other to produce sound. A crisp sound is issued, and the board sound and the bell sound at the same time. You can also shake the veneer in one hand to make a crisp ringtone.
In the old days, when the poor were begging along the street, they often slapped this board and sang "jing-jing". Since the 1950s, the bone board has been used for singing and dancing accompaniment and is a rhythm instrument with unique local characteristics. On festive occasions, the performers often strike and dance by themselves.