12pcs for 1box
- Refill for EnerGel RTX features Pentel's precise advanced blend of super-smooth liquid and gel inks
- For Pentel EnerGel retractable pens
- High performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience
- Gel ink dries so fast even left-handed writers love it - no smears, no smudges, no globs
- 0.7mm metal tip
- Features a tube coloured in ink colour.