Replacement core

Rollerball refill. Roller ball refill. LM66BK/M. ◆Ink color: Black

Rollerball refill. Roller ball refill. LM63BK/M. ◆Ink color: Black

Core diameter: 0.3mm Although it is clear and dark, it does not stain easily even when rubbed, and the letters do not bleed even when drawn with a ...

Core diameter: 0.9mmEven though it's clear and dark, it doesn't get smeared even if you rub it, and the letters don't smudge even when you draw a m...

Core diameter: 0.7mm Although it is clear and dark, it does not get smeared even when rubbed, and the letters do not bleed even when drawn with a m...

Core diameter: 0.7mm Although it is clear and dark, it does not get smeared even when rubbed, and the letters do not bleed even when drawn with a m...

Core diameter: 0.5mm Although it is clear and dark, it does not stain easily even when rubbed, and the letters do not smudge even when drawn with a...

Core diameter: 0.5mm Although it is clear and dark, it does not stain easily even when rubbed, and the letters do not smudge even when drawn with a...

Core diameter: 0.5mm Although it is clear and dark, it does not stain easily even when rubbed, and the letters do not smudge even when drawn with a...

Core diameter: 0.4mmEven though it's clear and dark, it doesn't get smeared even if you rub it, and the letters don't smudge even when you draw a m...