Public Bookmark / Library Bookmark

For fear of missing the deadine,we always need to remember the date when we borrow books from library. However, we may forget sometimes, and it will bring bad effects to our credit. Public bookmark can solve this problem easily in a romantic way.The moon area is made of five different materials,consequently,with time going by,it could fade out gradually.Every time you look the eclipse bookmark,you can be aware of the time left to read the book.Besides,the public bookmark can be recycled.