Recognition: "The reign of Qianlong in the Qing Dynasty" three lines and six characters. The straight belly is round, the mouth is similar, and the feet are bi-style. The whole body fights with color, and is decorated with double dragon play beads on it. The dragon, the scaly worm is long, can be subtle and bright, can be short and long, can reach the sky at the vernal equinox, and deep in the abyss at the autumnal equinox. Pearl refers to the night pearl, pearl. Legend has it that dragons can rain, and folks often worship the dragon king to pray for rain during drought years, and then perform a folklore activity of playing dragon lanterns. Shuanglong playing beads evolved from playing dragon lanterns, which means celebrating the good harvest and praying for auspiciousness. The whole instrument is extraordinary and magnificent.