OHTOCeramic Roller Refill 0.7mm C-307P-Black (Japan Import)

Original quality ink refill from Japan. Came encased in the packing with seal and then additionally wrapped for shipment to preserve it well. The water based ink works well on most paper, of course more porous paper tends to feather the ink when writing, but it dries fast on denser paper as well. The color is a bold black which contrasts nicely on ivory or bleached papers. I tend to journal for hours and the special barrel contributes to its reliability and consistency. The .7 mm is my personal favorite as it has a balance between writing fluidity and changes in wiring style for more decorative writing.

Fit and works just fine !

Great value for money. Writes very well. Not sure on longevity but the initial testing it writes a nice deep black.

Can't find pentech ceramic roller refills on Amazon or Walmart even tried pentech. com, they only seem to have pencil lead refills 😕

I ordered this refill to replace a 0.5mm filler. I like the 0.7mm refill much better. Ink flow is nice and smooth. These Ohto fillers have a smaller diameter tip than standard rollerball refills, so it is important to order an Ohto refill for an Ohto pen body.

I've tried a lot of inks/refills in my Big i design pen, but this one has got to be one of my favorite. It writes very smooth, it's dark, and dries very quickly. I haven't had any issues with it.

I want to like this refill because I like the .5mm version of the ohtu ceramic roller quite a bit. But the .7mm doesn’t work so good- the ink doesn’t flow that well, it skips. See my picture- at the top of every stroke there’s a dry bit of the line where the ink hasn’t started coming out yet. I got two of them and they’re both like this. Makes the pen hard to use, honestly. It feels nice when it does work though.

This refill fit perfectly into my Japanese pen, and write smoothly and evenly. Can't say much more than that. Definitely recommend!