photo from reddit EDC
Muji Gel Ink Pen (0.38mm)
by Muji
65
3 endorsements on r/BuyItForLife first recommended in Jun 2025
Thin-tip gel ink pen from Muji sold in 0.38mm and 0.5mm widths, with separately available ink refills.
Added Jul 5, 2026, Updated Jul 5, 2026
Why it's buy-it-for-life
Redditors praise how smooth and thin it writes, and it uses refillable cartridges rather than being disposable, letting owners keep the same pen indefinitely.
What redditors say
Recommended on reddit as recently as June 2025
Tags
gel-pen fine-tip refillable-ink made-in-japan
I've been using this one Muji pen 0.38mm for about a year and love how smooth and thin it writes.
Muji pens are my absolute favorite and they do sell refills.
Muji has such great products!