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🖋️ Write sharp, stay smooth — the pen that means business.
The Uni-ball Signo RT1 is a sleek, retractable gel ink pen featuring an ultra-fine 0.28mm tip for precision writing. Its water and light-resistant black ink guarantees durability, while the ergonomic rubber grip ensures comfort during long writing sessions. Sold in a value pack of five, it’s the perfect tool for professionals and students who demand reliability and style.
| ASIN | B06Y3S2XKL |
| Additional Features | Retractable |
| Age Range Description | Teen |
| Animal Theme | no animal theme |
| Best Sellers Rank | #59,230 in Office Products ( See Top 100 in Office Products ) #1,387 in Gel Ink Rollerball Pens |
| Body Shape | Round |
| Brand Name | uni-ball |
| Closure Type | Retractable |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,770) |
| Drill Point | Ultra Fine |
| Grip Type | Rubber |
| Hand Orientation | Ambidextrous |
| Hardness | HB |
| Included Components | Ecology Sticky Notes |
| Ink Base | Water |
| Ink Color | Black |
| Item Diameter | 0.28 Millimeters |
| Item Dimensions | 15 x 5.5 x 2 centimeters |
| Item Weight | 59 g |
| Line Size | 0.3mm |
| Manufacturer | uni-ball |
| Material Type | Rubber |
| Model Name | Uni-ball Signo RT1 |
| Model Number | SG_B06Y3S2XKL_US |
| Recommended Uses For Product | Home, School |
| Style | Modern |
| UPC | 191308002770 |
| Unit Count | 5.0 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Roller Ball Pen |
| Writing Technique | gel ink |
M**Y
Quality precision pens
I’m used to the Zebra Sarasa 0.3 mm, which is my go to pen, and wanted to find something of comparable quality with an even finer tip, to allow for smaller writing that’s still clear. Uni-ball Signo was at the top of the list of many pen reviewers so gave this 0.28 model a try. It’s checking all the boxes - smooth ink flow, micro thin lines, but not scratchy thin. Great value, nice clip, so far so good.
S**K
Great pen!
I usually use a 0.38mm tip so it took me a while to get used to the 0.28mm tip but now I use it all the time. The pen writes smoothly and dries quickly.
N**K
Nice!
Really great pens!! Smooth lines. I’ll be buying more.
R**A
Product below quality
The ink quality is not good. May be it is dry. With 0.28 tip i wanted to try it. It has a feeling like when the refill is about to finish
A**N
Süper ince yazı
0.28 kalemin en zarif hali. Hafif ve pürüzsüz yazmak bu kadar keyifli olmamıştı
Trustpilot
4 days ago
3 weeks ago