• Adhesive core that is resistant to rubbing and keeps notes clean. 
• Adopted a simple design case that is easy to take out the core with a sliding case that combines design and functionality.
• The "smudge proof manufacturing method" that adheres the core powder to the paper surface allows the core powder to adhere to the paper surface, allowing you to write crisp and dark letters, and because it is resistant to rubbing, it keeps the notebook clean after writing.