Eleven Discs Discbound Notebook, Letter Size, 1mm Poly Cover, Heavyweight Paper, 40 Margin Ruled Sheets (Black)Our durable poly cover notebooks come in a variety of colors to match your style. Letter notebooks include 40 sheets of our best selling Margin Ruled sheets, while Junior notebooks include 50 sheets of our Pure Dot Grid sheets. All of our paper is heavyweight and fountain pen friendly. A full set of inch discs is included, fully assembled. Eleven Discs is a boutique paper shop specializing in discbound notebook and planner designs. Our sheets are made