Discover the Wren "Write Off" – a sophisticated refillable pen that marries sustainability with superior writing performance. Featuring a precision Japanese-made nib and interchangeable cotton cartridges, this pen accommodates your preferred fountain pen ink, eliminating the need for disposables. Each handcrafted lid is uniquely fashioned from reclaimed plastic through an innovative process of chipping, injection-moulding, and meticulous finishing, ensuring no two pens are identical. More than a writing instrument, the Wren represents a conscious choice against single-use culture whilst celebrating artisanal craftsmanship and individual expression.
What ink can I use?
The Wren is compatible with dye-based Fountain Pen Inks, so long as they don’t contain particles (such as shimmer inks) or binders (like acrylic or shellac).
Tom's Fibre Tip Ink is the perfect ink partner
Can I purchase replacement tips and reservoirs for my Wren?
Yes! Everything you need for your Lumos is listed below:
- Spare Ink Reservoirs
- Replacement tips
- Reservoir & Tip Containers x 3
- Length capped – 155mm
- Length uncapped – 145mm
- Pen barrel diameter – 10mm
- Weight – 20g
- Made from Anodised Aluminium
- Gift boxd
- Made in the UK
About Tom's Studio
Tom's Studio is a small British pen manufacturer who's mission is to create beautiful and innovative tools that inspire folks to be creative and benefit from all that brings.






