0.5mm Replaceable Rollerball Ink Refills Specially for IDEAPOOL Rosewood and Bamboo Ballpoint Pens, 6 Pack (3 Blue / 3 Black)

Nice quality and goo that the pack comes with both black and blue. The blue ink is not the same color as cheap disposable pens. It is more of a navy blue. It fit my pen perfectly. The ink is good quality and doesn't bleed.

I have a Pentel Excalibur which I have used for eons.Alas, Pentel no longer make the Excalibur nor and "ink cartridges" to fit mine.These refills works very well, so I can keep using my now vintage Excalibur.

The headsets were shipped promptly and arrived on time. They are working well and I would recommend.

The ink does not come out consistently. Making it look sloppy when writing.

The only pen I use for my diary.

Very low price and good quality

Much better than the cartridges that come with the pen. Although the very narrow point is a little bit scratchy if held at too much of an angle, it does fine otherwise and the ink flows smoothly. I recommend buying a set of refills when buying the pen so you can switch to these right away. You'll like them better.