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🍌✒️ Write smart, write stylish — the pen that fits your vibe and your hustle.
The Mitsubishi Pencil UMNSP05.28 Uni-Ball One P gel ballpoint pen features a precise 0.5mm tip with hybrid gel ink for smooth, consistent writing. Its low center of gravity and stabilizer mechanism provide exceptional balance and comfort, while the compact, banana-inspired design offers portability and a unique aesthetic perfect for professionals seeking both style and function.
| Additional Features | Pockets |
| Age Range Description | Adult | Children | Teens |
| Asin | B0BZHD973D |
| Best Sellers Rank | #4,232 in Office Products (See Top 100 in Office Products) #117 in Ballpoint Pens |
| Body Shape | Round |
| Brand Name | 三菱鉛筆 |
| Closure Type | Retractable |
| Color | banana |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,647) 4.4 out of 5 stars |
| Drill Point | Fine |
| Grip Type | Contoured |
| Hand Orientation | Ambidextrous |
| Included Components | Ink Cartridge |
| Ink Base | Hybrid |
| Ink Color | Black |
| Item Diameter | 0.5 millimeters |
| Item Dimensions | 4.6 x 0.55 x 0.76 inches |
| Item Type Name | Gel Ink Ballpoint Pen |
| Item Weight | 9 g |
| Line Size | 0.5mm |
| Manufacturer | 三菱鉛筆(Mitsubishi Pencil) |
| Material Type | Plastic |
| Model Name | ユニボールワンP |
| Model Number | UMNSP05.28 |
| Pattern | single item |
| Recommended Uses For Product | Writing |
| Style | Japanese |
| Subject Character | banana |
| Theme | Fruit |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Ballpoint Pen |
User
Chunky little pen
I love this pen! I bought it for my boyfriend, and he loves it as well. The ink is smooth and easy to write with. He's a leftie, and it doesn't smudge terribly. I haven't experienced any issues with leakage or broken parts. There's no soft grip, and the small size is a bit of an adjustment. The clip isn't the strongest if you're trying to clip it onto something thicker than a few pages, but it's a good little pen overall. The color selection is very nice, and the grape color is accurate to the photo.
User
Great pen, great ink, great deal!
The Uni-ball One P gel pen writes like a fountain pen, but has the convenience of a ball point. The 0.5 tip produces an intense color saturation and dries immediately. If you require a thinner line the 0.38 tip is a good alternative. The thicker body is easy to hold, especially for arthritic fingers and comes in an assortment of colors to suit your tastes. This pen is excellent for writing checks, memos and notes. The Uni-ball One P gel pen would be a welcome addition to any writer's desk at a very affordable price. Peter P.
User
An excellent pen
This is pretty much a perfect pen in my opinion. It's extremely ergonomic, even for my large hands. It's functional, especially the clip which is much sturdier than standard plastic pen clips. And it writes beautifully. It dries almost instantly, this is one of the few pens I use that almost never smears. It's just fantastic. The only downside is the high price but honestly I love this thing so much that I can't even complain about that.
User
Works great, writes smooth, and a good size for those with hand issues.
This pen is so cute! I love the color I got. It's a nice light sage color, one of my favorites. The barrel is about half an inch thick so it does take some getting used to when you first use it but it's totally worth it. The body feels slightly rubberized so you should have a good grip on it when you write. It writes so smoothly I absolutely love it, even with the 0.38 nib. I have a love-hate relationship with ballpoint pens and usually stick to fountain pens but this pen made me reconsider. The ink goes on paper very smoothly and dries relatively quickly. I use it on my Tomoe River paper notebooks and havent noticed any bleed throughs, especially on my Hobonichi Weeks.
User
Best ink pen I own
0.38 pen is great for my Hobonichi Techo Weeks; thin writing is ultra fine and clear. Works well on Tamoe paper: smooth and dries relatively fast (no blotting or blowing dry as with fountain pens). Standard black ink is not streaky but is very clear. The chubby barrel relieves my hard grip as I write, and I find I can write a bit longer than with a thinner barreled pen. Soda is a nice color and helps determine ink colors I keep (red black blue). I use it daily for Techo, notes to mom, and sermon notes. Never thought a Japanese pen would make a difference in my writing but the high quality understated function and minimalist design is the best. The size fits comfortably in my small hand, the ink refill lasts me maybe a month? Since I use all 3 ink colors it depends on which ink color I’m using ….
User
Best small pen ever!
I love this pen!!! It's my absolute favorite and almost my trademark at work. The size is perfect to fit in a pocket -- I even accidentally washed it once with no harm done! It has a small, chunky size and writes well. I have replaced the ink several times because I use it so much.
User
Love it but skips when writing
I love how it looks and I love the drag of the pen when writing, it feels vaguely like a fountain pen. However, since day 1 I had issues with it skipping and not wanting to write. It's every few words, so definitely frustrating and if I have a lot to write I know not to use this anymore. I hoped with age it might be smoother but I've had it over a year, using fairy frequently at times, and keep having the same issues. It's super cute though! I love the size, it fits nice in a pocket, and it writes well when it works so I'm still keeping it for small tasks.
User
Aesthetically Pleasing, Comfortable, Smooth Fast Drying Ink
I have small to medium hands, so the size and length of the pen felt better in my hands and prevented some fatigue. The ink does not smear as it dries pretty quickly. I felt that the ink was sharp but soft than you might usually see with other pens. Sometimes the ink would skip but that was only if I was applying too much pressure as I was writing with it. That turned out to be helpful for me as I am someone who has a tendency to put too much pressure. I would say that value for the money depends on what you are looking for in a pen and how it works for you personally. I found the colors aesthetically pleasing and I was a fan of the shape/size. I also liked the clip attachment.
User
Calidad
Mini bolis de una calidad impresionante. Fluidez en la escritura. Pequeño y agradable al tacto. Diseño limpio y bien acabado.
User
Inte värd hypen
Torkar ut snabbt och inte alls värd hypen. muji görDet 100000x bättre
User
Perfect everyday pen
The Uni-ball One P is an excellent compact pen with a smooth ink flow and very comfortable grip. The ink is rich and vibrant, making writing feel clean and precise, while the small size makes it perfect for carrying every day. Despite its minimalistic design, it feels surprisingly premium and well made.
User
Fantastische inkt
Als je niet goed meer je pen kunt vasthouden of op dun papier moet schrijven echt de pen om te gebruiken. Fantastische inkt en 0,38 mm is prima om klein mee te schrijven
User
Tamaño perfecto
Tamaño ideal para mi Traveler's tamaño passport.Escribe fluido. Me ha gustado.
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