It is made of bronze, bowl-shaped, with a large and thin surface, raised edges, and a small and flat cap protrusion in the center. The diameter of the face is 33 cm to 37 cm, the diameter of the cap is 6 cm to 7 cm, and the height of the cap is 4 cm to 4.5 cm. Both sides are one pair. When playing, hold one side with both hands and strike each other to pronounce. The tone is soft a...