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🖋️ Write Boldly, Finish Strong – The Pen That Means Business
The Uni-ball Signo Dx UM-100 Gel Ink Pen features a 0.7mm tungsten carbide tip delivering smooth, precise lines with waterproof pigment ink. Its patented Uni-Flow system ensures consistent ink flow until the last drop, while the transparent barrel allows easy ink level monitoring. Trusted by professionals for over 10 years, this refillable rollerball pen combines durability and style for everyday excellence.
| ASIN | B005644GKK |
| Additional Features | Waterproof |
| Age Range Description | Kid |
| Age range (description) | Kid |
| Animal Theme | No animal theme |
| Best Sellers Rank | #41,267 in Office Products ( See Top 100 in Office Products ) #139 in Rollerball Pens |
| Body Shape | Round |
| Brand | uni-ball |
| Brand Name | uni-ball |
| Closure Type | Snap |
| Color | Blue |
| Colour | Blue |
| Customer Reviews | 4.2 out of 5 stars 126 Reviews |
| Drill Point | Extra Fine |
| Grip Type | Smooth |
| Hand Orientation | Ambidextrous |
| Included Components | Dbmier A750 Mini Notebook |
| Ink Base | Water |
| Ink Color | Blue |
| Ink colour | Blue |
| Item Diameter | 0.5 Millimeters |
| Item Dimensions | 15.8 x 6 x 3 centimeters |
| Item Weight | 12 Grams |
| Line Size | 0.5mm |
| Manufacturer | Uniball |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | Um 100 |
| Model Number | BC30647 |
| Pattern | Solid |
| Recommended Uses For Product | Writing |
| Style | Refillable |
| Subject Character | Plain |
| Theme | No theme |
| UPC | 701936337238 |
| Water Resistance Level | Waterproof |
| Writing Instrument Form | Roller Ball Pen |
| Writing instrument form | Roller Ball Pen |
J**P
Wrong description
Although the pen is described as 0.5mm, it is 0.7mm.
Z**O
0.7 mm
The ball size for the pen is 0.7 mm not 0.5 mm which makes the font size wider and uncomfortable for me.
V**Y
Excellent pen and a great value!
Writes well, good color of ink; and it will last a long time unlike some pens.
Z**N
Good quality
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.
B**R
Great pen, good ink, nice fine writing tip. Long!
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.
P**L
Waste of money, time, and resources.
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
M**7
Really enjoy this pen!
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.
Trustpilot
2 weeks ago
2 days ago