Ohto Ceramic Rollerball refills

Ceramic-ball roller refills for OHTO rollerball pens and others.

High-quality liquid ink refill. The ceramic ball gives noticeable 'bite' to the writing style, quite unlike regular roller ball tips.

Available in a range of tip sizes:
Fine C-305 0.5mm tip
Medium C307 0.7mm tip
Broad C-310 1.0mm tip