







☕🖊️ Write sharp, feel smooth — the pen that means business.
The Mitsubishi Pencil UMNSP38.30 Uni-Ball One P is a premium gel ballpoint pen featuring a precise 0.38mm tip and a low center of gravity stabilizer for unmatched writing stability. Its sleek coffee-colored barrel offers a modern, ergonomic design that fits comfortably in hand. Refillable and ambidextrous, this pen is perfect for professionals seeking a stylish, reliable writing instrument that combines functionality with sustainability.
| ASIN | B0BZHFSKXT |
| Age Range Description | All |
| Age range (description) | All |
| Best Sellers Rank | 7,157 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 135 in Gel Ink Rollerball Pens |
| Body Shape | Cylindrical |
| Brand | 三菱鉛筆 |
| Brand Name | 三菱鉛筆 |
| Closure Type | Retractable |
| Colour | Coffee |
| Country Of Origin | Japan |
| Customer Reviews | 4.4 out of 5 stars 1,562 Reviews |
| Drill Point | Conical |
| Grip Type | Round |
| Included Components | Ink Cartridge |
| Ink Base | Water |
| Ink Colour | Brown |
| Ink colour | Brown |
| Is the Product Left or Right Handed? | Ambidextrous |
| Item Diameter | 0.5 Inches |
| Item Dimensions | 11.7 x 1.4 x 1.9 centimetres |
| Item Weight | 0.01 Kilograms |
| Line Size | 0.3mm |
| Manufacturer | 三菱鉛筆 |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | One P |
| Model Number | UMNSP38.30 |
| Recommended Uses For Product | Writing |
| Special Features | Pockets |
| Style | Modern |
| Subject Character | Uni-Ball |
| Theme | Love |
| Unit Count | 1.0 count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Roller Ball Pen |
| Writing instrument form | Roller Ball Pen |
D**W
Top marks
Love this. Pen is a great thickness, grips very well, has a lovely click action and the clip can be squeezed open, which is a great detail feature (great fidget pen!). Carefully and thoughtfully designed. Fantastic value, excellent build quality, superb design. Included gel cartridge is very stable on page, though feels a little harsh due to the very precise and small tip - personally I love this pen for tasks like wireframing, sketching/annotations and other quick stuff, but others may actually prefer this feel for writing. Note that it IS a refillable pen, so you're not stuck with this if you don't like it. Overall, just a really handy, very well-made and eminently pleasant pen at a fantastic price.
J**A
The best pen I've ever written with
I saw an advert on these pens being "award winning" so as a stationary nerd had to get one. I was surprised by the price and really liked the colour options across the market. The writing experience is smooth and consistent whilst still comfortable to write with!
N**Z
Nice pen, scratchy nib :-(
Lovely little pen though didnt keep but let me explain why. Its a lot shorter than normal pens, but whilst that was ok, i found the nib a little too scratchy for my tastes, I was expecting a 'smoother write' and maybe its my paper ( i tried a few different books) or perhaps i'm heavy on the hand, all that aside, its just wasnt for me. Have given it 4 stars as its a lovely colour and held nice, but the tip was too scratchy.
A**X
Uni ball one- small and mighty pen :)
Absolutely AMAZING pen I deffo recommend this pen! I have problems when I’m writing or studying. My hand starts to ache because I press down on my pen so hard. This pen is an amazing solution and I’ll tell you why - the pen stops you from gripping tightly -the pen is small so you don’t have much to grip tightly either. (It’s small but an amazing size to be honest ) Five stars from me
M**S
Excellent little pen
Excellent. Easy to hold. Inking clear.
A**R
Short fine tip
Writes very smoothly with a very fine tip! It was much shorter than I was expecting though, not your usual pen length.
A**R
One of the best ones I have ever used.
One of the best ones I have ever used. The ink dried instantly and is a delight to write with.
E**E
shorter than expected, but rests comfortably still, lovely ink flow and girthy diameter
I was pleased that what I received was a genuine Uni One P import, and after using it for a little bit I've found that the girthier diameter of the main shaft makes it easier to maintain a secure hold for longer writing sessions - it feels like my finger muscles are less tense than vs thinner standard pens. The pen length is shorter than I expected at about 115mm overall, but I actually didn't find this to be an issue because it still comfortably rests in the nook of my thumb - any shorter and it would miss, and I have quite large hands. The gel within writes a lot more smoothly than a regular ballpoint - it's crisp and opaque and seems to have a nice consistent flow which is giving me even-width lines strokes,.
Trustpilot
1 week ago
1 day ago