This is a set of derivative design of the four treasures of the study, inspired by the Shanhaiguan Great Wall culture. Through the refinement of Shanhaiguan, the Great Wall and other modeling elements, it expresses a cultural connotation and a sense of blending scenery into things. The four treasures of the study are mainly made of ebony. Ebony is also called ebony for viewing, durable and has collection value. It is decorated with metal to increase the layering of its materials, which is elegant and noble. When people use the four treasures of this study, they can have a good understanding of the charm of Shanhaiguan Great Wall culture, which has good aesthetics and practicality.