Kunming sells Wan Wen elastic thread, such as Kunming Luosiwan Daily Commodity Wholesale Market and Aimei Jewelry Business Department. Literary drama refers to Four Treasures of the Study and various literary techniques derived from him. These stationery have different shapes and exquisite carvings, which can be used as rewards and become handicrafts displayed in the study and bookcase. Among the traditional stationery in China, pen, ink, paper and inkstone are the most basic stationery. Since the Ming and Qing Dynasties, stationery has developed further, and various stationery matching pens, ink, paper and inkstones have appeared. Literary play in the modern sense can be popularly understood as an appreciation film or a hand-held film with traditional cultural flavor. Literary play often does not exist independently, but is often combined with activities such as calligraphy and painting, tea and incense to add some fun to life.