What is the general font shape of Lu Ji's Ping Fu Tie?

Lu Ji (26 1 ~ 303) was born in the western Jin dynasty. Lu Ji's Ping Fu Tie is the earliest original handed down so far and has always been regarded as a calligraphy treasure by the world.

"Ping Fu Tie" has 9 lines and 84 words. The paper color is dark, the pen is bald and thirsty, and the font is Cao Zhang, but the swallowtail wave of official script is not emphasized, and the font is too long.