Pilot G2 Retractable Premium Gel Ink Roller Ball Pens, Ultra Fine Point, 4-Pack, Assorted Colors, Black/Blue/Red/Green Inks -31276

Better than Muji pens but not as good as Micron markers. Specifically on Leuchtturm and Skribbles that Matter notebooks, they tend to smudge no matter how long you leave them if you go over them with a finger that has any amount of moisture and also every single highlighter. The smudging isn't terrible for things that I leave for maybe 20 minutes or so, but it is definitely still noticeable.Aside from that, dig the grip and the fine point - it also doesn't have a bit of give when you first press down like other ballpoints so it's quite well made.

I love the ultra fine tip, the smoothness of the ink, and no odour from the ink.Down sides: the grip is rather fat and hard to hold comfortably for extended periods (so it takes some getting used to), the ink smears and bleeds when something like a drop of water or perspiration hits it (but that's life with ink), and the urine yellow coloured plug at the end of the ink tube (esthetic).