- Pilot Petit Pen Series Refill Cartridge, IRF-10SPN-4C
- 4 Color Set, Black Ink, Red Ink, Blue Ink, Blue Black Ink
- For Pilot Petit1 Mini Fountain Pen (SPN-20F), Pilot Petit2 Mini Sign Pen (SPN-15M), Pilot Petit3 Mini Fude Brush Pen (SPN-15KK)
- Value Set of 4
- Pilot Petit Pen Series Refill Cartridge, IRF-10SPN-4C
- 4 Color Set, Black Ink, Red Ink, Blue Ink, Blue Black Ink
- For Pilot Petit1 Mini Fountain Pen (SPN-20F), Pilot Petit2 Mini Sign Pen (SPN-15M), Pilot Petit3 Mini Fude Brush Pen (SPN-15KK)
- Value Set of 4