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Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set

Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set

Q: do you also sell ink refills for these pens? I'm looking for blue

These pens do not write well at all.

Q: How do these compare to Tül pens?

Well TUL has a larger ball base than the UNI. I find a thinner base more functional

Q: Does the ink show up on black paper or is it just for white paper?

Just for white, I have been looking for a milky equivalent. I keep hoping they will make some :) since these are my favorite.

Product ID: 725777064

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Details

Brand
Pencil)
Writing Instrument Form
Ballpoint Pen
Color
Set of 8
Ink Color
Set of 8
Age Range (Description)
Adult | |

🌈8 vibrant, fade-resistant ink colors

📏Compact 5.5-inch sleek design

🖊️0.38 mm ultra-fine tip for precision

Frequently Bought Together

Uni Ball One, Gel Ink 0.38mm Ballpoint Pen, 8 Colors Set (UMNS388C)

Uniball Gel Pen 12 Pack, 0.38mm Ultra Micro Black Ink, Smooth Writing Office Supplies

Mitsubishi Pencil UMNS38FC8C Gel Ballpoint Pen Uni-Ball One 0.38 Fica Color Set of 8 Colors

Description

🖋️ Write Sharp, Stand Out Brighter!

COLOR YOUR IDEAS BOLDLY - Choose from 8 vivid, fade-resistant inks that bring your notes and sketches to life.
LIGHTWEIGHT YET DURABLE - At just 3.1 oz, these pens combine portability with lasting performance for daily use.
DESIGNED FOR ON THE GO PROS - Slim, straight shaft with an oval wire clip fits effortlessly in your pocket or notebook.
PRECISION THAT SPEAKS VOLUMES - Experience razor-sharp 0.01 inch (0.38 mm) lines that make every word count.
DARKEST BLACK BRIGHTEST COLORS - Uniquely formulated ink ensures your black is deeper and colors pop with unmatched clarity.

The Mitsubishi Pencil Uni-Ball One UMNS388C is a premium gel ballpoint pen set featuring an ultra-fine 0.38 mm tip for precise writing, available in 8 vibrant colors including a uniquely dark black. Its sleek, compact design with an oval wire clip ensures easy portability, making it the perfect tool for professionals who demand clarity and style in every stroke.

Specifications

Brand	三菱鉛筆(Mitsubishi Pencil)
Model Number	UMNS388C
Color	Set of 8 colors.
Material Type	Plastic
Number of Items	1
Size	0.38
Point Type	Fine
Line Size	0.38 ミリメートル
Ink Color	Set of 8 colors
Product Dimensions	14 x 9 x 2 cm; 85.05 g
Shredded Shape	Pocket Clip

Have a Question? See What Others Asked

do you also sell ink refills for these pens? I'm looking for blue

How do these compare to Tül pens?

Does the ink show up on black paper or is it just for white paper?

Is the ink archival and waterproof?

Reviews

C**R

もうずっとこれでいい

安くて使いやすいボールペンを探す旅はユニボールワンで終わりそうです。書きやすく、インクの出が多くも少なくもなく、色が濃く見やすい。替え芯のストックは常に欲しいので、この値段で手に入るのは助かります

18.07.2025

し**ぽ

イラスト用にぴったりです！

スケジュール帳に使用しています！描きやすくて発色も良くて愛用しています！

26.07.2025

ぴ**か

気に入ったユニボールoneのレフィール

気にって使っていると、インク切れでレフィールを買おうと思った時には廃番になっており悔しい思いを何度もしてきましたので、10本買っとけば当面心配ないので購入しました。ボールペン類は結構モデルチェンジがが速いので気に入ったのなら早い目に買っておくのが賢明です。ユニボールoneは現在2種類のタイプを使っていますので、使い倒したいと思います。

8.09.2025

A**ー

シンプルでよき

白を基調としててオシャレ！色がはっきりしてて使いやすいです！ただ、1本だけインクが出にくくかった！

1.08.2025

ケ**ン

お得

このペンが色濃く出てお気に入りなのですが、すぐにインクがなくなってしまうので替え芯をたくさんまとめ買いできて助かります。

13.08.2025

ミ**ン

う～ん

多色でたいへん便利なんだけど、黒色がすぐに全く出なくなりました。インクはたっぷり残っているのに・・残念です。

13.05.2025

R**O

一生物

正直教えたくないそれぐらいいい商品色んな色がありますが、自分は黒を買いだめしました。一生使うと思います

21.07.2025

カ**ン

書きやすい

とても滑らかで書きやすいですね

26.07.2025

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