Refills and writing - Ink type: Oil‑based ballpoint for low…

Refills and writing
- Ink type: Oil‑based ballpoint for low-smear, everyday paper (forms, notebooks, sticky notes).
- Line quality: Consistent, low‑maintenance; 0.7 mm for finer notes, 1.0 mm for bolder, smoother lines.
- Compatibility: 153 variants typically share the same family of Monami ballpoint refills. If you’re swapping refills between specific sub‑models, verify the exact refill length/spec from the product page or manual.