

🖋️ Elevate your writing game with precision and style—because your ideas deserve the best.
The Uni-ball UM151S SigNo Gel Rollerball pen features a 0.7mm stainless steel tip paired with a tungsten carbide ball for smooth, consistent ink flow. Its Uni Super Ink technology safeguards against fraud and fading, while the ergonomic gel grip and transparent barrel window ensure comfort and convenience. Sold in a value pack of 12, this pen is a top choice for professionals seeking reliable, high-quality writing instruments.














| ASIN | B000NJUP5S |
| Best Sellers Rank | 3,164 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 62 in Gel Ink Rollerball Pens |
| Brand | uni-ball |
| Closure | Click-Off Cap |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,263) |
| Date First Available | 16 Nov. 2006 |
| Grip Type | Gel Grip |
| Ink Colour | Black |
| Item Weight | 13.2 g |
| Line Size | 0.7mm |
| Manufacturer | Uni Mitsubishi Pencil Company Ltd |
| Manufacturer Part Number | 751081000 |
| Material Type | Plastic Rubber |
| Model Number | 751081000 |
| Number of Items | 12 |
| Pencil Lead Degree (Hardness) | HB |
| Point Type | Medium |
| Product Dimensions | 1 x 1 x 13.5 cm; 13.15 g |
| Size | 1 count (Pack of 12) |
| Tip Type | roller-ball |
****
Good quality pen, free flowing ink and non-scratchy nibs. Best of all though, hard to beat at this price!
This review applies to the UM-151S red gel-grip rollerballs, as there seems to be a mush-mash of options covered by the same review process. The gel grip gives more purchases than a cheap shiny plastic body, I like the feel of these pens in my hand as they are well balanced. The cap has a *very* firm click as it locks into place, so is unlikely to fall off or get lost in a bag or whatever. The pigment gel ink and stainless steel tip combination works well to produce a consistent and non-scratchy flow when writing. I usually prefer a finer nib/tip/ball to be honest, but as you can see from my attached photo the 0.7mm one of these pens isn't exactly thick or clumsy. I couldn't find any 0.5mm tip red pens that matched these for value, so here we are. Great value, and this box of 12 will almost certainly see me through until this time next year I reckon. Shame I can't find a red Parker 'quink' rollerball refill though, as I'd rather keep a single pen and just refill rather than buy disposables - but hey ho...
N**W
Too quality gel
My son’s favourite gel pens for university.
L**B
good value for money
The item was exactly as described. Have been using them for a while and they are so easy to write with.
M**M
Great product
Love these pens, well worth the money. Arrived on time and well packaged.
A**E
Good to use
Easy & comfortable to use.
D**T
deveritt
As described good value for money
J**R
Fast delivery
Promptly sent, my favourite pens.
A**R
Best pen
I prefer these pens to any other, have used and bought as presents. Ink is very clear, good value
A**.
Tutto bene, ottima scorrevolezza
F**P
Best ball pen that I have used. Leaves uniform trail ALWAYS.
B**E
Die Stifte und ziemlich gut und scheinen nicht durch, schreiben über Tippex und sind so ziemlich zuverlässig. Manchmal klecksen sie etwas beim Schreiben, oder sie schreiben gar nicht, aber wenn man etwas schüttelt geht es dann wieder.
A**.
Great pen that isn’t too small or too big. Writes cleanly without blotches.
D**S
I love these pens; they are perfect. Second box I have bought in 2 years. They last a while; each pen lasts me about a month or 2 (I use it in rotation with purple pens for marking students' work).
Trustpilot
2 weeks ago
1 month ago