The pendant is composed of a piano rod, a piano shaft, a piano barrel, a piano bow, a piano string, a piano horse and so on.

The qin barrel is made of hardwood, mahogany or yellow paulownia, with an octagonal shape, the front mouth is covered with snake skin, and the back mouth has a hollow frame. The stem part is similar to the stem of a three-string and is shorter. The total length is about 90 cm, and it doubles as a fingerboard, with two strings, which are placed on the string, and the bow runs inside the string. Played with a ponytail bamboo bow. Fourth tuning A, D, the range is about two and a half octaves. The sound is high-pitched and soft, and it is used not only for accompaniment, but also for solo and instrumental ensemble.