Paperweight refers to something used to press down paper when writing and painting. The most common ones are rectangular bars. For this reason, they are also called rulers and pressure rulers. The original paperweights had no fixed shape. The origin of paperweights is that ancient literati often put small bronzes and jade objects on their desks to play with and appreciate them. Because they have a certain weight, people will also use them to press paper or books while admiring them. Over time, , developed into a kind of stationery utensil - paperweight.