Uni-Ball AIR Micro - 0.5mm Fine Rollerball - Pack of 12 - Black

So, don't buy these used, I got a box full of random garbage pens... But this is a rating of the product, not poor QC Uniball had no control over. The ink is waterproof and doesn't budge when I use watercolour with it; it has a fine point, but is kinda like a ballpoint when you press down, it has a thicker line. Smooth writing, almost as good as my fountain pens, and on e the ink dries, it doesn't go anywhere. It's good for writing and drawing, and the ink lasts quite a while considering how much I sketch.

I use these pens for art journaling and they are perfect for that! They write over any medium and the tip can take a lot. It writes pretty smoothly and the pens last a long time. I put it over other art mediums so I always let it dry but it has not smudged on me.

Great product I use this pen for journaling

I love these pens

I'm totally in love with these pens! I use them for line art and lettering.

We nurses are on quests to find the perfect pen. Haven't had much in the way of success, but this pen's pretty good. Bold print, so don't think you're writing anything small on your report sheet. And if you're signing or still writing notes (stone age?), it's comfortable but still will be less-clear writing. It's got a good feel to it, light, not too-thin/too-thick, smooth writing, and ink never leaks/bleeds/smudges (fast-drying, but I'm right-handed, so you lefties will have to test this).

I've been a repeat buyer of these for years. They have some unique characteristics that aren't found elsewhere. 1. Variable line width and darkness depending how hard you press and the angle of the pen. 2. Extremely light lines can be made by skimming the pen. Few rollerballs do this. 3. Extremely fast and light crosshatching or filling in...more like a fountain pen. 4. Very reliable pen flow in old pens that have sat in a drawer waiting to be used. One caveat: unlike most rollerballs, this type of pen will happily continue to stain your shirt or pants if it gets uncapped inside a pocket. The ink will flow and flow, and it's impossible to clean. Since it's a cap not a click pen, this will assuredly happen if you use this one as a normal writing and work pen. This is an art pen, not a work pen as uniball sells more appropriate pens for that usage.

Great pen but not better then pilot precise v5. After directly comparing them back to back the uniball is great but occasionally feels scratchy like the roller ball gets stuck. Pilot precise feels identical but the ball doesn’t get stuck so it feels much smoother. I got the 10 pack and tried multiple pens so it’s not a defect

I like this pen as it's smooth, and doesn't smudge. When writing notes for work and need to stop to highlight, no smudging.

I love these pens, they write very smooth.

came fast and accurate