[Soft Ring] You don't have to worry about your hands on the ring when you're writing, making it easy to write on the edge of the page. [D-shaped Ring] Allows pages to be turned over and aligned with the edges of the notebook. It opens flat for easy writing and folds flat for convenient use in small spaces. [Silky Smooth Writing] Uses Kokuyo original Campus notebook paper made in Japan, developed through extensive research for the most comfortable writing experience with any writing instrument. [Bleed Resistant] Whether you’re using ball pens, gel pens, rollerball pens, or any type of writing instrument, Campus loose-leaf paper resists ink bleed so writing on every page is clean and comfortable. The paper is pH neutral, which means it's ideal for long-term storage and won't yellow or degrade over time. [Perforated Pages] The perforated pages of this notebook make it easy to tear out sheets cleanly and neatly. Whether you need to hand in an assignment or share your notes, the perforations ensure smooth removal.