Signo Dx Um-100 Gel Ink Pen - 0.5 Mm - 10 Pcs - Uni Mitsubishi Pencil(Black)

Although the pen is described as 0.5mm, it is 0.7mm.

The ball size for the pen is 0.7 mm not 0.5 mm which makes the font size wider and uncomfortable for me.

Writes well, good color of ink; and it will last a long time unlike some pens.

I am using the Uni-ball Signo UM-100 Gel Ink Pen - 0.5 mm pens for over 20 years. They fit perfectly my hands and fingers. They write thin and don't leave any marks or ink on the paper. In plus, they have a nice color, be the blue, the red or black or black blue. I wish there were less of the same colour in a pack, and instead 3-4 colours in the same pack. I couldn't find them in any stationary shop only on Amazon and online. Anyway, I love them.

I got these after reading a recommendation and they do fit the bill. Nice pen, good for writing notes, journal, business etc, no spilling or smudging. Just one thing - these are the longest pens I've ever used, don't know why the barrel is so long, but I got the hang of it after an intial head-scratch. Recommended.

If I could give a half star I would. I work in the healthcare field so I’m using pens all day and I can honestly say this was by far the worst purchase I’ve ever made in my entire life. The pen busted on the third day I used it and went all over my white coat and hands. I literally grabbed the rest of the pack I bought and dumped it in the trash. I wouldn’t waste your time or money on this terrible product

Comes in multiple point sizes (0.38…0.5 micro…0.7 fine…1.0 bold). Also comes in multiple ink colors (my choice is blue/black, next is black, blue is a little light at the .05 point, and red which is even lighter at 0.5 point. Comfortable in hand, generally won’t run or smear (I am not left handed), ink in pen lasts quite awhile! Overall a five star pen that is disposable when empty at a good cost per pen when you get 10 at a time.