Ding Dong is composed of a wooden pole and a wooden frame. The wooden pole is the pronunciation body, and it is mostly made of mahogany or other hard wood. The pole is 200 cm to 240 cm in length and 10 cm to 12 cm in diameter. Floral patterned tripod on wooden frame. In Hainan folk, the Li family often uses the local "Chai Jishen" (called kenaf tree in Hainanese) wood to make.

There are many varieties of dulcimer. In addition to the traditional eight-tone, ten-tone and twelve-tone small dulcimer, which are suitable for folk instrumental ensembles or accompaniment for rap and opera, dulcimer with variable pitch, turntable dulcimer, zheng dulcimer, and full-tempo live-horse dulcimer. And electric dulcimer, etc. are suitable for solo or participating in the national band ensemble.

Erhu began in the Tang Dynasty and has a history of more than a thousand years. It originated from an ethnic minority in the northern part of ancient my country, and was originally called "Jiqin" and "Xiqin". It is mainly composed of piano tube, piano skin, piano rod, piano shaft, string, bow, jin, piano code, piano support, and damping pad.