Set of 5 double-sided matte laminated refill sheets (Weekly)♪ *Binder is an image and is not included in the product contents. ★Size: A6 Outer diameter: Approximately 17.5cm x 10cm Inner diameter: Approximately 16.8cm x 9cm *10,000 yen bills can also fit ★Writing on the refills If writing with a water-based pen, you can erase it with nail polish remover or alcohol. For colored pencils, you can erase it with an eraser, allowing for repeated use! *Depending on the type of pen (pens with sharp tips, dark colors), the color may remain, so lighter colors erase more cleanly.