TUL Discbound Notebook With Leather Cover, Letter Size, Narrow Ruled, 60 Sheets, Black - The premium TUL Custom Note-Taking System immerses itself into your daily life, able to be modified again and again to suit your needs. Add to it. Remove pages from it. Rearrange additional sheets that you've punched. With seemingly endless personalization options available, you'll find that everything revolves around discs that snap organization right into place.