This work is to challenge the fixing of the chair surface and the chair body to reduce the fixed area and achieve a structure that can safely carry the weight of the human body. The seat surface is fixed by the front and rear two points on both sides, and the inward and downward pulling force of the user when riding makes it more firm. In terms of the design of the side bar, the two ends of the stick are finished with convex arc-shaped copper parts, so as to increase the contact area and stability. The embellishment of copper parts and the color of walnut wood add a retro and calm feeling to it. And the seat surface is a two-color design, users can turn over and replace the seat surface with different colors according to the surrounding environment.