The main applications of erasers are very extensive, covering almost all occasions that require writing or painting. Firstly, erasers are one of the essential stationery items for every student and employee in schools and offices. During the writing process, whether it's elementary school students doing homework or white-collar workers drafting documents, there are inevitably errors or areas that need to be corrected, and erasers come in handy. It can help people quickly erase errors and keep the paper clean and beautiful.

Rubber erasers, usually made of rubber or other soft materials, have excellent friction performance. Its invention greatly changed the way people write and modify words. In the past, people could only rely on blades or sandpaper to correct handwriting, which was undoubtedly time-consuming and laborious. The emergence of erasers made everything easy. With just a gentle wipe, those erroneous handwriting will instantly disappear without a trace.