Refillable Pens

Everyday essentials that can be used repeatedly.

This pen can be refilled with two different types of ink in various colors and thicknesses without having to dispose of the main body.

We changed the design to make the pens and refills compatible in order to reduce waste.

By looking at the price, materials, and ease of use, we aim to continuously improve our products.


Refilling your pen is now easier.

Refilling your pen is now easier.

There are multiple brands across the world that sell pens and refills. However, it is often difficult to gauge the compatibility of the refills and the main body. Have you ever experienced this problem, and ended up purchasing new pens instead?

In order to easily find the right fit, we've created a new MUJI pen and refill that are all compatible with each other.

Refilling your pen becomes more affordable.

Ballpoint Pen Cap Type Body Ballpoint Pen Knock Type Body
Ballpoint Pen Cap Type Body Coming soon
Ballpoint Pen Knock Type Body Coming soon
Refill Gel Ink Ballpoint Pen Refill Smooth Gel Ink Ballpoint Pen
Refill Gel Ink Ballpoint Pen$1.00
Refill Smooth Gel Ink Ballpoint Pen$1.00

There isn’t a huge price difference between new pens and refills. Did you ever decide to purchase new pens for that reason?

We have revised the price of the refills in order to make it worth purchasing refills. The same pens can now be used for a lower price and for a longer time.

The first pen.

Try different pens in order to find your favorite.
Choose among our retractable and capped pens available in multiple colours.


Gel Ink Ballpoint Pen Cap Type


Smooth Gel Ink Retractable Ballpoint Pen


Customize your own.

Create your own pen according to your preference in color, pen body type, ink, and thickness.
Customize the pen for your needs.
Select the body, color, and thickness to make your own pen.

Pen Refills


Available in various colors and 3 different thickenesses.
All refills can be used in either type of pen body.

Gel Ink

For smooth,
comfortable writing.

Gel Ink

For precise

For easy-to-read

For strong
writing pressure.