Tuhu with a unique appearance, the head is like a three-string, the stem is cylindrical, and the barrel is like a lyre.

Most of them are made by folk artists using local materials and soil methods. A dry gourd with a big belly is cut from the thin end, or two gourds are cut from the middle, and the bottom of the gourd is used. Taking snake skin as the surface, it becomes a hemispherical cylinder with slightly smaller ends and slightly larger middle. The end) is often carved with a five-pointed star or petal-shaped sound window.

The headstock and stem are made of a whole piece of red toon, mulberry or pine, with a total length of 80-90 cm.

The head of the piano is similar to the three-string head, in the shape of a square column, the top is slightly bent back, a rectangular string groove is opened at the bottom, and a shaft is placed on the left and right sides. The pegs are wooden, conical, 10 cm long, with straight petals engraved on the shank. The piano bar is cylindrical, and the upper end (connecting with the head) is provided with a mountain mouth supporting string, which is free of heavy weights. A wooden hollow bridge is placed above the center of the leather surface.

Two wire or steel strings. A piano holder is added under the violin barrel. The qin bow is made of thin bamboo and firewood, and the two ends are tied with horsetails as bow hairs. The length of the bow is about 70 cm.