First of all, Bian Shi has a long history, which is recorded in Huangdi Neijing. The ancients used needles and knives to treat diseases.

Secondly, the pumice in Sibin (the original stone of Bian Shi in Sibin) is the earliest named stone in China, and the green made of it is called the floating green in Sibin, which is a tribute more than 4,000 years ago.