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Ohto C-305P Ceramic Rollerball Pen Refill

The Ohto C-305P Ceramic Rollerball pen refill is a super smooth 0.5 mm rollerball refill in a standard European rollerball size.

While it’s not cheap, this is one of the smoothest rollerball pen refills sold today. It has a metal body and is sold in a 0.5 mm size, but writes much wider thanks to the water-based rollerball ink.

The “ceramic” in the name refers to the material from which the ball itself is made. The super-hard ceramic in the writing ball is very wear resistant, perfectly round, and carries ink well from the reservoir to the paper.

The C-305P is most commonly found as the stock refill in the Ohto Dude metal rollerball.

Ohto C-305P Ceramic Rollerball Pen Refill Information

Street Price Check Price
Manufacturer Ohto
Pen Type Rollerball / Gel
Sizes 0.5 mm
Ink Colors Blue, Black, Red, Blue Black
Max Body Width6.0 mm
Acid-Free? No
Erasable? No
Pressurized? No
Archival? No
Fade Resistant? No
Fraud Prevention? No
Quick Drying?No
Water-resistant? Waterproof?No
Ink BaseWater-based
Refill Length (cm)11.1
Tip ShapeConical
Tip MaterialCeramic, Metal
Refill StandardPilot G2
Quantity Sold1
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