The Wren - Refillable Writing Pen

Choose your perfect colour combination

€42,95

Body colour
Lid colour

Wren - Take Flight & Write

A beautiful and infinitely refillable writing pen, equipped with a Japanese-made writing tip. We're on a mission to make choosing refillable options easier, so you can now buy two (or more!) Wren pens and save 10%

Each year, an estimated 9 billion pens are thrown away, contributing to growing environmental waste. Many writing tools are designed with convenience in mind, often leading to a cycle of frequent replacements, which generates significant waste and limits options for those seeking more sustainable, long-lasting choices.

As a product designer and craftsman who loves writing, I became frustrated with the waste created by disposable pens. They would pile up in drawers, waiting for a specific refill, or worse, end up in the bin despite being perfectly usable – if only they had ink.

After years of designing and handcrafting calligraphy and fountain pens for creatives worldwide, I decided it was time to tackle one of the biggest culprits: the everyday writing pen. The result? The Wren – a pen designed not only to write beautifully but also to last a lifetime, helping to reduce the mountains of waste created by disposable pens.

Included in the box:

  • The Wren in your choice of colour
  • Japanese-made Writing Tip*
  • 3ml Midnight Ink sample
  • Ink Reservoir

*0.3–0.5 depending on pressure

Specifications:

  • Length capped – 80mm
  • Posted (cap on the end of the pen) – 120mm
  • Pen barrel diameter – 13mm
  • Weight – 20g
  • Made from Anodised Aluminium

Full FAQs and a video guide to getting started with your Wren can be found here.

What ink can I use?

The Wren is compatible with all but the most experimental fountain pen inks (think shimmer + iridescent). We offer a beautiful range of ink for fountain pens, which are perfect for the Wren and can be found here.

Note: Calligraphy Ink has an acrylic binder which will block the pen and is not suitable for use with the Wren.

Some ink colours can concentrate in the tip, so you may experience a lighter colour after a line or two. This is completely normal and looks quite nice!

How do I store the reservoir and tips?
You can store reservoirs and tips, and change to a different colour using spare reservoirs and my reservoir storage containers.

How long will the tips/ink last?
You can expect the high-quality, Japanese-made tip to last for months of use. We tested a single ink fill in the Wren on a plotter – a device used for precision drawing – and it wrote consistently for 344 metres. That's the equivalent of 50 A4 pages of handwriting!

When the tip eventually dulls, you can find packs of three replacement tips here.

Anything else I should know?
Yes! I’ve designed the pen to include ‘micro-grooves’, tiny ridges that enhance grip without using plastics. Please note: the black and midnight colourways do not feature these micro-grooves, as they have a grippy matte finish.

Shipping costs are calculated at checkout.

For dispatch times, customs details, and more, please visit our Delivery page. If you have any questions, feel free to reach out to us at hello@tomsstudio.co.uk – we’re here to help!

Customer Reviews

Based on 638 reviews
91%
(579)
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J
James W.
Fantastic Pen

Bought to replace my "refillable" rollerball pen and wow, I'm never going back to other pens again! Looks smart, feels wonderful in the hand, compact, and feels great to write with too. I even think that the delicate tip is encouraging me to write with less pressure on the page and to let the pen glide across the paper. Cannot recommend highly enough.

T
Tabitha L.

Beautiful colors and attentive craftsmanship.

K
KW
Lovely little Wren

Fantastic little pen, I love it so much that this is the third one I have bought for myself so that I can have different colour inks in use at the same time, I love that the colour of cap and pen can be picked separately making each pen unique to you.
On unboxing (beautiful presentation) the pen just needs the ink adding (with the free sample or one of Toms Studios amazing range of inks) and in a matter of seconds you are ready to go.
When in use it feels very comfortable in the hand and is lovely to write with, the ink flows evenly across the page with no blotting.
It is very easy to change the nibs and ink reservoir should you wish to change colour.
This is truly one of the nicest pens I have ever used and it may now have cured my obsession with finding the perfect pen. (Currently working through the ink to find the perfect colour, current favourites being Sunny Teal and Constellation).

I highly recommend this little pen, it will make a fabulous gift (if you can resist keeping it for yourself!)

J
John T.

Excellent product. Such nice packaging. Warm and friendly messages which was a nice touch. The pen itself is marvellous. Can’t stop writing with it! Would recommend to all my mates. And thanks for the tea.. very thoughtful. Cheers

K
Kristy C.
Brilliant

This pen has a brilliant feel in the hand as well as such a lovely feel when put to paper. I can’t get enough of it!