The design is inspired by Du Fu's poem: "The vitality is dripping and the barrier is still wet, and the real slaughter should cry." Describe the fullness of pen and ink. The big one contains vitality, the fiber one enters the insensitive, the extremely simple and atmospheric body, and integrates into the unique round and harmonious artistic conception of the Chinese people. This concept is used in the pen, which means that the front end is round, and the beautiful article is written freely and actionable: the back end is square, and the hand is controlled in a stable and convergent manner: while the person holds the middle part of the hand, realizing the state and stage of "holding the middle and keeping one" of the internal body, without losing the overall grasp, slender metal details, improve the texture of the pen, hoping to give users a hearty experience.