What converter would be compatable with this pen?

in this pen, it requires a standard international converter, but since the shape of the intake is slanted like a standard international cartridge, many of the chinese standard int'l converters won't work (since they're like cylinders with standard int'l bore, and not tapered). you're gonna wanna look for a standard international converter that has the smaller, slanted part at the front instead of just being a barrel. brands that do fit: schmidt (the K5), monteverde, montblanc, waterman, rotring, and some select moonman ones. brands that do NOT work (unless you're willing to file off some from the front to make it fit): jinhao, hero, penbbs, most chinese brands. basically any standard international converter that costs more than $5 will probably fit lol. i'd recommend the schmidt k5 because this pen has a schmidt nib/assembly, so it's like for sure compatible. if anyone finds a cheap chinese brand that has a properly shaped converter, please contact me because so many pens have this problem, and i want to buy 20 of them.

What size nib us on this pen?

By comparing this with other pens I have, I would say this is a bit finer than 0.7mm (medium), but visually heavier than 0.5 (fine). Frankly, if it were near a fine nib, I wouldn't like it; and I like this pen a lot!

What size is the nib?

It's a fine nib. Good flow. Smooth writing.

Does it come with ink?

Yes, one ink cartridge is attached.

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MUJIMoma Aluminum Fountain Pen

4.4/5

Product ID: 262741288

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Details

Brand
Other
Writing instrument form
Fountain Pen
Colour
Black
Ink colour
Black
Age range (description)
Adult

📏Compact 13.7 cm length with sleek 1 cm diameter

⚙️Lightweight 20g aluminum body

🇯🇵Precision-crafted in Japan

Description

🖋️ Elevate your writing game with minimalist precision and timeless style

EFFORTLESS ELEGANCE - Sleek aluminum design that’s featherlight for all-day writing comfort
SEAMLESS INK COMPATIBILITY - Uses MUJI’s proprietary 5-139040 ink cartridges for smooth, consistent flow
CRAFTED FOR THE CONNOISSEUR - Made in Japan with meticulous attention to detail and quality
PRECISION AT YOUR FINGERTIPS - Available nib sizes from 0.3mm to 0.9mm for flawless, fine-tuned strokes
DESIGNED FOR THE MODERN PROFESSIONAL - Contoured grip and click-off cap combine style with practical ease

The MUJI Moma Aluminum Fountain Pen is a lightweight, precision-engineered writing instrument crafted in Japan. Measuring 13.7 cm in length and weighing just 20 grams, it features a sleek aluminum body, contoured grip, and multiple nib sizes (0.3mm to 0.9mm) for customizable writing experiences. Compatible with MUJI’s exclusive ink cartridges, this pen blends minimalist design with professional-grade performance.

Specifications

Manufacturer	Other
Brand	Other
Model number	15136865
Product Dimensions	13.7 x 1 x 1 cm; 20 g
Color	Black
Closure	Click-Off Cap
Grip Type	Contoured
Pencil Lead Degree (Hardness)	Fine
Material Type	Metal Aluminium
Number of Items	1
Size	2 Piece Set
Point Type	Nib
Line Size	0.3mm or 0.5mm or 0.7mm or 0.9mm
Ink Color	Black
Manufacturer Part Number	15136865
Item Weight	20 g

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MUJIMoma Aluminum Fountain Pen

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