Paperweight, also called zhen zhi in Chinese, is an equipment in sanctum used to press paper. Ancient Chinese were fond of using brushes and large pieces of paper, therefore, paperweight was one of the necessary objects in sanctum as it can prevent the moving of the paper caused by the writer and also prevent wind from blowing the paper away.
It has a long history in China which can date back to the birth date of paper. It can be made from lots of materials, including wood, bamboo, jade, bronze, stone,etc. Also, it comes in a wide variety of shapes as well as colors. However, the most common seen is the paperweight in rectangular bar shape.
In Chinese history, it is as important as the four treasures of the study. It has high appreciation value and the collection value.