MUJI Gel Ink Ballpoint Pen 0.38mm / 0.5mm Pack of 4

MUJI Gel Ink Ballpoint Pen – 0.38mm / 0.5mm | Classic Cap-On | Pack of 4

The pen that started it all. The MUJI Gel Ink Ballpoint Pen is a timeless classic — clean, unbranded, and built to write beautifully every single time. Available in 0.38mm and 0.5mm tip sizes, this pack of 4 comes in black, blue, and pink, giving you the everyday essentials in MUJI’s signature no-fuss style.

Key Features

• ✍️ Choice of 0.38mm or 0.5mm tip — ultra-fine or fine, pick your preferred line weight
• 💧 Smooth MUJI gel ink — consistent, skip-free writing for notes, journaling & everyday use
• 🎨 Pack of 4: Black, Blue & Pink — the essential colour trio in one pack
• 🔒 Classic cap-on style — MUJI’s iconic design, simple and reliable
• 📌 Minimalist MUJI aesthetic — unbranded, clean, desk-ready

Product Details

• Brand: MUJI
• Ink type: Gel
• Tip sizes: 0.38mm / 0.5mm (select variant)
• Colours: Black, Blue, Pink
• Pack quantity: 4 pens
• Style: Cap-on

Frequently Asked Questions

Q: What is the difference between 0.38mm and 0.5mm?

A: The 0.38mm produces an ultra-fine line ideal for small handwriting and detailed notes, while the 0.5mm gives a standard fine line for everyday writing. Both use the same smooth MUJI gel ink.

Q: Does the pack include all three colours?

A: Yes — the pack of 4 includes pens in black, blue, and pink. Please refer to the product images for the exact colour breakdown per pack.

Q: What does "cap-on" mean?

A: Cap-on means the pen uses a removable cap rather than a retractable click mechanism — MUJI’s classic, traditional pen style that keeps the tip protected when not in use.

Q: Is this suitable as a gift?

A: Yes — the MUJI gel pen is a universally loved stationery staple. The 4-pack format and iconic MUJI packaging make it a clean, thoughtful gift for any occasion.