System planner refill A5 size / address refill

**System planner refill (6 holes)** **A5 size / address refill** ======== Refill paper size: 148 mm x 210 mm 〇 1 set / 15 pieces Paper used: 90kg high-quality paper (slightly thicker than copy paper) Refill hole diameter: 5 mm ======== ・Produced at a printing company in Japan. - We use thicker paper that is less likely to bleed through, but fountain pen ink and dark colored markers may still bleed through. The notebook itself is not included. ========