Uni-ball Signo UM-100 Gel Pen - 0.5 mm - Black

Uni-ball Signo UM-100 Gel Pen - 0.5 mm - Black

In stock and ships within 1 business day.
4.8 (11 reviews)
DescriptionSpecificationsFrequently Asked Questions
Get all the colors for the popular Uni UM-100 pen line!

Known for its smooth flowing ink and its writing performance, the UM-100 pens are top notch pens hidden in an economical body form.

Refills available!

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Customer Reviews

I bought these at a local...
February 28, 2015
I bought these at a local store around my house for two reasons, it had a lot of ink and it was a Signo. The 0.5mm tip bothered me somewhat as I usually use the Signos in the 0.28mm tip size. However, when I got home and began to use it, I saw that is was THE smoothest pen I had ever used in my life. The color was rich (probably due to the larger tip size) and the barrel was the perfect width. The pen is ridiculously long, longer than the UM-151's (Signo DX) by quite a bit. If they made this in a 0.38 tip size, imo that would be the perfect pen.
1 person found this helpful
Great value for what...
October 28, 2009
Verified Purchase
Great value for what you're getting. Very smooth, very nice. I'd be using these instead of the DX if they had this in 0.38. I actually prefer the pen without the rubber grip, since it makes the pen look more minimal. Often borrowed, rarely returned. Get more than one.
1 person found this helpful
OMG! These are my favorite...
August 10, 2015
Verified Purchase
OMG! These are my favorite pens to write with... and I write alot. So, it is important for me to have a smooth writing pen. I purchase alot of pens on a monthly basis and I don't see these particular pens around. I will admit I don't know there product Id's, so I am stuck trying to find them. I am thankful that Jetpens offers such a wide variety. if they didn't , I might not have found my favorite pens! It is a shame not being able to go local and find these pens, but I am thankful just the same to be able to order them...even if it is across the country.
Lovely pen!...
February 16, 2015
Verified Purchase
Lovely pen!
there will no other gel...
December 6, 2008
there will no other gel pen as smooth as when you are writing with um-100. Although this pen may look ordinary but its performance can be compatible with world class gel pens. the advantages of this pen are: smooth handwriting, no skipping of ink, quite a long ink life, a non-tidious writing hand while using this pen. And of course, this a good pen with dark ink which most you guys will love it. Try investing one urself, you guys will go 'woah, smooth!'