Skip to content

Gel Ink Cap Type Ballpoint Pen 0.5mm 10 Pieces Set

$18.90 - $18.90
$18.90
$18.90 - $18.90
$18.90
COLOR: Black

The water based ink in this pen allows for smooth writing and no bleeding through paper. The tip of the pen uses a mechanism to keep ink from flowing in the other direction and drying out. Comes in either black or navy and in 0.38mm or 0.5mm.

⚠ WARNING: Cancer - https://www.p65warnings.ca.gov/


SKU 4550182902242
Product Details

Measurements:
Length: 14.0 cm (Approx. 5.5 ")

Nib: 0.5 mm (0.02 ")

Country/Region of Origin: Japan

Material & Care

Polypropylene, ABS resin, Steel.

- Keep item away from high temperatures

Shipping & Returns

Spend $80 to receive free shipping. Oversized items require additional handling fees. Learn more

Except for furniture, bedding & towels, innerwear, and food, merchandise can be returned or exchanged within 30 days of delivery. Learn more

Overall rating: 4.817427 / 5 from 964 reviews.

AI Generated Review Summary

This Gel Ink Cap Type Ballpoint Pen Set offers smooth writing with no bleeding through paper. Customers appreciate the stylish design, vibrant colors, and consistent ink flow. The ultra-fine tip and smooth feel enhance the writing experience, making it ideal for fine line writing.

Summary topics

  • Line Consistency (4%): Customers appreciated the smooth and consistent thin lines produced by these pens, making them the best pens for fine line writing.
  • Pen Point (2%): Customers loved the ultra fine point pens, praising their durability and smooth flow of the ink.
  • Product Design (2%): It was observed by customers that the design of the product is stylish, sleek, and functional.
  • Product Quality (6%): It was observed by customers that the quality of the product is consistently great, excellent, and very good.
  • Pen Appearance (3%): It was observed by customers that these pens make everything look neat and tidy, making their writing smooth and tidy.

Review topics: ["color","fit","size","feels","shipping","quality","weight","issues","looks","packaging","design","works","value","deal","customer service","service","thickness","details","width","price","case","performance","pressure","experience","satisfaction","use","set","pens","writing","ink"].

Review highlights

  • "The write smoothly with (I feel) little friction, and the end product is a bright vibrant color." — Deanna H.
  • "they feel so nice, they look nice, they don’t smudge or bleed at all, and they make my handwriting look so good :)" — Leda K.
  • "These pens write so smooth, and the colors are very vibrant and accurate to their pen caps." — Ivy L.

Reviews

Best journaling pens ever!

"I discovered these pens five years ago when ordering Muji planners - they are wonderful for journaling! Bright colors, fine line, no bleeding. I buy extras of the blue/black and give them as gifts along with a Muji blank journal. My friends are so happy with the gift!"

— Allison M. (5/5)

Love These Pens

"⭐⭐⭐⭐⭐ I absolutely LOVE MUJI pens! They write incredibly smoothly, the ink is consistent, and the fine point makes my handwriting look so neat and clean. As a teacher, I’m constantly writing—planning, grading, taking notes, making lists—and these have quickly become some of my favorite pens to use. They’re comfortable to hold, don’t feel bulky, and the simple design is perfect. No skipping, no messy ink, just a smooth writing experience every time. I completely understand the MUJI pen hype now. Definitely a 5-star purchase!"

— Kristen J. (5/5)

Blue black ball point

"They are very nice. Sleek design 0.5 mm tip with fine writing. They just haven’t labeled any pen as blue/black. They all are the same."

— Zainab J. (4/5)

I am obsessed with these pens!

"I only wish there were more colors and that all the pens only came in "click" format. Love them A++++"

— carol h. (5/5)

Best pens for the money, no question

"The rate at which the ink dries in the 0. 5 and 0. 38mm tips is great and smudge-free. I have used these utensils for over 5 years and havve only needed to replace those which I hav e misplaced. The 10x variety pack used to be my go-to but now I only buy refills. The cap is satisfying to open and close, the clasp has stayed firm after years of fidgeting, and the precision is second to none. Perfect for annotations, fine details, subscripts, etc. Love, love, love! I always scramble to find one of these when I need to jot something down. A must-have in any desktop arsenal."

— Henry L. (5/5)

"My favorite pen in the whole world! I was given one by a coworker last year and kept it. It finally ran out of ink so I had to get more. There's no other pen that writes quite like this brand and they are slightly harder to find online so you have to buy from MUJI! Will by more soon."

— Alexandra (5/5)

These have been my absolute

"These have been my absolute favorite pen for years"

— Latifa D. (5/5)

Reliable, vibrant, and perfect for notetaking

"They write smoothly, are very comfortable, and work with almost all barrel type ink refills from Sarasa dry to Pilot G. The Muji ink plays nicely with many paper types, from high end to cheap copy paper. They smudge a little bit on nice paper, but they dry within ten seconds. This is typical for lefties like me, and I just learned to become an overwriter. I recommend for the clear pen bodies alone, the ink is a nice plus."

— Jeremiah J. (5/5)

Awesome!

"I have so many classes that I have to take notes for, and these pens are perfect! Especially for AP courses, since you can only use blue or black ink. They’re very handy and having a set of 10 means no running out for a longgg time."

— Leo B. (5/5)

LOVE these pens

"The . 5 pens were so amazing I had to buy the full pack after trying 2 individual ones. I love the colors and the consistency. These write so smoothly and don’t smudge or skip on the page. Journaling and working has been so fun with these!"

— Michelle G. (5/5)

Q&A

I need refills for these pens, but the ones I got don't fit.
Hi Katie, our Gel Ink refills are all compatible with the Gel Ink Cap Type and Knock Type Ballpoint Pens. However, please note that if you have a pen or refill from before 2020, you may need to update to our current pens to ensure compatibility. Here's a link to our pens collection: https://www.muji.us/collections/pens?. If you have any further questions, Customer Support is happy to assist via help@muji.com. Take care! ^KS

Due to the high volume of orders, we are experiencing a delay in shipping times. We apologize for the inconvenience.