This is a set of plain origami paper, including used and unopened sheets. Approximately 600 sheets of 15.0cm x 15.0cm Approximately 100 sheets of 11.5cm x 11.5cm Totaling approximately 700 sheets. The exact number of sheets is unknown as they haven't been counted, so please understand that the quantity is approximate. One of the cases has writing on it (written by siblings to distinguish their belongings). This is a used item stored at home. Please purchase with the understanding that it is a used item.