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🖋️ Write smart, write smooth — the pen your productivity deserves!
The Muji Smooth Gel Ink Ballpoint Pen Set features ten retractable pens with a precise 0.5mm nib, delivering smooth, smudge-resistant gel ink ideal for professionals and creatives alike. Crafted with a lightweight polypropylene body and minimalist Japanese design philosophy, these pens offer comfort for extended writing, easy refillability, and a sleek aesthetic that complements any workspace.



| ASIN | B08P5J6CHH |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 1,653 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 32 in Gel Ink Rollerball Pens |
| Body Shape | Round |
| Brand | MUJI |
| Brand Name | MUJI |
| Closure Type | Retractable |
| Colour | Black |
| Customer Reviews | 4.6 out of 5 stars 1,503 Reviews |
| Drill Point | Fine |
| EU Spare Part Availability Duration | 1 Years |
| Global Trade Identification Number | 04550182902273 |
| Grip Type | Retractable |
| Hardness | 2H |
| Included Components | 1 x Muji Smooth Gel Ink Ballpoint Pen Knock Type 10-Pieces Set, 0.5 mm Nib Size, Black |
| Ink Base | Water |
| Ink Colour | Black |
| Ink colour | Black |
| Is the Product Left or Right Handed? | Ambidextrous |
| Item Diameter | 0.5 Millimetres |
| Item Dimensions | 7 x 15 x 140 millimetres |
| Item Type Name | Ballpoint Pen |
| Line Size | 0_5mm |
| Manufacturer | Muji Europe Holdings Ltd |
| Material | Polypropylene |
| Material Type | Polypropylene |
| Model Name | Smooth Gel Ink Ballpoint Pen Knock Type Set of 10 |
| Model Number | 4550182902273 |
| Pattern | Clear |
| Recommended Uses For Product | Drawing, Journal, Sketching, Writing |
| Special Features | Lightweight, Retractable |
| Style | Minimalist |
| Theme | Versatile |
| UPC | 842487102569 |
| Unit Count | 10.0 count |
| Writing Instrument Form | Technical Pen |
| Writing Technique | ballpoint |
| Writing instrument form | Technical Pen |
T**L
The best pens ever
I've tried dozens of pens in my time, from biros to ballpoints to fancy fountain pens. Never have I found a pen that works as perfectly as the Muji, I will always to back to it. I've gone through many Mujis by now. I really recommend these pens. Just be aware they are not water resistant, and you do need to allow a slight bit of time to dry or they will smudge.
V**I
Perfect
Really Good. No issues
R**N
Dark, smooth writing, just watch for tip scratchiness
Really pleased with these pens. The ink is nice and dark/inky but dries almost instantly, so smudging isn't usually an issue, just give it a couple of seconds if you're writing fast, as it can smudge if you go over it too soon. They feel light and comfortable to hold, and it's a simple, no-fuss pen that does exactly what you need. My one gripe is that the tip can feel a bit scratchy/scrappy on the page rather than gliding smoothly, so it's worth being aware of if that's something that bothers you.
A**S
Quite expenive
i love muji so much so naturally i went to buy these pens in bulk! one thing i don’t like about them tho is how QUICKLY they run out, they’re quite expensive too. Durability wise i would say they’re good for short term use but as i mentioned earlier they run out far too quickly for daily use. I alternate in between pens when using muji. They are very aesthetic and pleasing to the eye. After it dries, it doesn’t really smudge- but be careful while writing with it as it WILL smudge. It’s easy to use, what can i say. It glides smoothly onto the paper so if you’re a sucker for cute looking and nice performing pens, muji might be a contender.
A**A
Awesome
I love these pens. They are all easy and smooth to use. They may seem expensive but you do get quite a few and they do write for a while. They may need a bit of time to wear in but they are fantastic. I will definitely repurchase these and other supplies from muji.
A**E
Great pens! No smudging!
I previously bought these pens from the actual Muji Store, I loved these pens so much I decided to bulk purchase to avoid journeys to the store. I absolutely love these pens and let me tell you a little bit about them! They do not smudge one bit which is perfect, easy to grip and hold, easily refillable, clickable, not too inky, but inky enough for comfort. They are great to write with, and is the only pen which suits my handwriting. I urge you to get your hands on these pens!! 😱🤩💓
R**S
Good
OK
J**N
dark blacks, classic muji. but run out very quick
these have everything, the muji look, the black ink, the smooth writing, but if there was ONE issue... the ink runs out far too quickly for them to be conventional pens
V**H
good quality, fair price
great pens make writing a little easier on the hand
K**D
Best pens ever
My favourite pens! Lightweight but inky - without smudging! Am obsessed
N**L
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J**H
Product
Good product
A**N
My FAVORITE for note-taking!
These pens are the holy grail of note-taking pens. They’re smooth, don’t skip, don’t bleed/leak, and the pens are so lightweight that it doesn’t hurt your hand to write for a long time. They smudge ever so slightly, but by the time I’ve finished a sentence, they’ve dried enough. They don’t have any branding on them so it took me awhile to find the right pens after borrowing one from a friend forever ago- but I’m so glad I did!
Trustpilot
2 weeks ago
2 weeks ago