Peng cup (pinyin: Pèng zhōng), also known as ping bell, is a Mongolian percussion instrument. Popular in Inner Mongolia Autonomous Region. Made of copper, it is shaped like a small cymbal, with a diameter of 7.6 and a thickness of 0.6 cm. Consists of two sides. The middle of the cup surface is convex and hemispherical, and there is a small hole in the center of the ball, which can be set with a ring-tie copper chain, red silk, cloth belt, etc., to connect the two small cups together. Hit the sound with one hand on each side. The bump cup always hits with each eye, twice per eye.