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 of heavyweight 32lb bond (120 gsm) paper, sourced from mills in the United States and Canada, that is 60% thicker than standard paper and can be inserted into your discbound planner many times without tearing. To maintain our high standards, our sheets are all designed, cut, and punched on site, in the U.S.A., and our products are all assembled in-house.