It is a paper bookmark (book marker) that imitates a peony flower. When you open the pages of the book and hold the string, a paper peony will appear like a bloom. You can sandwich the open peony flower bookmark in the book and close it smoothly. You can open and close the bookmark as many times as you like. It blends gently with your fingertips and books, and the good texture unique to paper is also a point. While reading, you can decorate the side with a bookmark that looks like fresh flowers. It can be used as a gift for those who like to read, or as a celebration for passing or entering the university.