Delfonics Rollbahn Slim Spiral Notebook is thinner than your typical notebook which makes it more suitable to carry in bag or even in your hand. Its thick and stiff cover provides support for writing easier. The use of 5mm inner square paper prevents the ink from penetrating to the back easily. The paper is perforated making it simple to jot down notes and pass it along. The notebook also features elastic band to keep it all together and a transparent storage bag attached to the last page, use it as storage for bills or other small items. Comes with grid pattern paper.