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Ohto G-307 Gel Ink Pen Refill - 0.7 mm - Blue

by Ohto
  5.0  1 reviews | Write a Review

Ohto G-307 Gel Ink Pen Refill - 0.7 mm - Blue - OHTO G-307NPP BLUE
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Gel ink refills from Ohto that can fit all the Ohto Liberty pens such as the Ohto Fine, Orca and more. These refills are the same size as the C-30X (i.e. C-305, C-307, C-310 etc) Ceramic Roller Ball series and are interchangeable. The G-30X series has gel based ink instead of the water based ink of the C-30X line. 0.5 mm, 0.7 mm and 1.0 mm sizes available.

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Model NumberOHTO G-307NPP BLUE
Weight0.3 ounces
Diameter - Max 6 mm
Ink Color Blue
Quantity in Pack 1
Size - Length 11.5 cm
Tip Size 0.7 mm
Tip Type Conical


December 12, 2011
The G-307 gel ink cartridge...
Verified Purchase
The G-307 gel ink cartridge is the way to go! Very smooth and never skips like the C-307 cartridges have a tendency to do. Might be the perfect ink cartridge, and I've been searching for that for a long time. The G-307 is smooth in a controlled way for a .7mm cartridge, and doesn't get sloppy the way the Parker Gel Ink refills can get. Only issue might be how long they last and whether or not they begin to write differently towards the end of their capacity. Will keep you posted. Makes my Orcas the perfect pens!