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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.

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.

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.

Gel Ink Pens

Pen Refills

A gradual shift towards a better relationship with our planet.

Since 2020, MUJI has made the transition to paper packaging for products across the apparel & household categories, and in the first 6 months of launching, we've reduced 26 tons of plastic.

Other complementary stationery

Polypropylene Pen Case

A lightweight polypropylene pen case to conveniently store your stationery essentials.



High quality paper that has a smooth surface and provides writing comfort, while planted wood paper is made from wood pulp of planned plantation and not easy for ink to penetrate. Choose a suitable size and inner pages and use together with sticky note to develop your own notetaking method.

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Polypropylene Binders

PP Binders with a wide selection of styles and sizes can be used in combination with different kinds of loose leaf paper and punched pockets for filing important documents, name cards, and receipts.

Shop Here


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