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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🖋️ Write Your Success Story with MUJI Moma – Where Minimalism Meets Mastery

COMPATIBLE WITH MUJI INK CARTRIDGES - Seamlessly refill with MUJI 5-139040 cartridges, keeping your pen ready to capture every brilliant idea.
CRAFTED IN JAPAN TRUSTED WORLDWIDE - Premium Japanese manufacturing ensures durability and a refined writing experience that stands out in any boardroom.
EFFORTLESS ELEGANCE IN EVERY STROKE - Experience smooth, precise writing with a finely crafted 0.3mm nib designed for professionals.
SLEEK MINIMALISM MEETS FUNCTIONALITY - With a slim 1cm diameter and a click-off cap, this pen fits perfectly in your pocket or planner without bulk.
FEATHERLIGHT DESIGN FOR ALL DAY COMFORT - At just 20 grams, this aluminum pen feels like an extension of your hand, reducing fatigue during long meetings or brainstorming sessions.

The MUJI Moma Aluminum Fountain Pen is a lightweight, precision-engineered writing instrument made in Japan. Featuring a 0.3mm fine nib and a sleek aluminum body measuring 13.7 cm in length and 1 cm in diameter, it offers a smooth grip and effortless writing experience. Compatible with MUJI 5-139040 ink cartridges, this pen combines minimalist design with professional-grade functionality, perfect for the discerning millennial manager.

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

MUJI Moma Aluminum Fountain Pen

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