Fountain Pens
Tibaldi Infrangible Review: A Playful Italian Fountain Pen With an Ebonite Feed
A colorful swirly acrylic fountain pen from a revived Italian brand, with a steel nib, cartridge and converter filling, and a genuinely nice writing feel at around 120 euros.
Introduction
The Tibaldi Infrangible takes its name from a word that essentially means indestructible, which is a fittingly confident label for a pen built around a big swirly acrylic body. Tibaldi is an interesting brand: it produced pens from 1916 to 1965, went under, and has since been resuscitated and is back in action. The Infrangible is one of the current models, and it arrives in several finishes with a range of steel nib grades.
This review covers what is in the box, how the pen is built, how it writes with its fine steel nib, and the things worth weighing up before spending around 120 euros on it.
Unboxing and Presentation
The packaging is more considered than most. The outer cardboard sleeve has the Tibaldi name in relief on the side, and inside the lid there is a subtle printed profile of a fountain pen with a clip, the kind of detail that is easy to mistake for a smudge at first glance. It is a small touch, but it feels refined.
Under the sleeve you get the main box with a removable pen bed, two ink cartridges in a small baggie, and a reflective Tibaldi warranty certificate card. Cartridges and a converter are both supplied, so you can start writing either way right away.

Design and Materials
The review pen is finished in what is best described as peacock blue, though pinning down the exact character of the material takes some effort. This is a swirly acrylic, and how fancy it looks genuinely depends on the angle you hold it and which part of the pen you are looking at. The barrel can read as a fairly plain mix of blue and brown stripes, while the cap is dramatically swirled and much more colorful. That inconsistency is the design’s charm and its weakness at the same time.
Compared side by side with a Pilot Metropolitan, the Infrangible is a little bigger and a little girthier. The cap and barrel sit flush when closed, the barrel tapers down toward a fixed end (not a blind cap), and the clip is quite tight. Made in Italy is stamped at the joint. The finial is the same material as the cap, and the overall shape is comfortable in the hand, with a nicely sized section.

One small design quirk: there is a groove near the end of the section. If you dip the pen into an ink bottle to fill a converter, ink will get trapped in that groove and needs cleaning out. It is not a dealbreaker, but it is an obnoxious little detail for bottle fillers.
The nib is a stainless steel number six with an eagle motif, available in extra fine, fine, medium, broad, and double broad. It is genuinely nice that the company still offers a double broad, a grade many brands have dropped. The real standout is the ebonite feed, which is a treat to see at this level. Ebonite is not a magic ingredient, but it typically offers excellent flow, and that is exactly what shows up here.
How It Writes
With a fine steel nib and a drier blue ink, the Infrangible is a pleasant writer. The nib is hard and rigid with very little bounce, so this is not the pen for expressive or flexy writing. What it does deliver is smoothness and consistency: it is remarkably smooth for a fine nib, and the fine grade actually delivers on its promise, running as a true fine.

Flow is good, and the ebonite feed clearly plays a role there. Reverse writing is also possible, and it turns the already fine line into something closer to an extra fine. If you like a firm, predictable nib that just gets on with the job, this one will suit you well.
Comfort-wise, the pen is light enough that posting it works nicely, and the section is very comfortable either way. Unposted it is still a decently sized pen that many hands will find pleasant for longer sessions.
Things to Consider Before Buying
The biggest point of hesitation is the material split. The cap’s vivid swirls are far more interesting than the broader, plainer stripes on the barrel, and it is easy to wish the whole pen had been turned from the same lively stock. Swirly acrylics are also no longer a rare selling point: pen shows are full of table after table of colorful acrylics from many makers, so the finish alone does not set this pen apart the way it might have years ago.

At 120 euros you are also edging into gold nib territory, and buyers often start to expect one at that price. To be clear, a good steel nib outperforms a poor gold nib, and this is definitely a nice steel nib. Nothing is wrong with it. It is simply that expectations shift at this level, and the value proposition deserves a moment of thought.
Buying Advice
Buy the Infrangible if you want a playful, colorful, comfortable writer with an unusually good feed for the money, and you are happy with a firm steel nib. Look elsewhere if you want a more uniform material or you feel a gold nib is essential at this price. Double broad fans should take particular note, since that grade is increasingly hard to find.
Conclusion
The Tibaldi Infrangible is a fun, colorful, very capable fountain pen from a revived Italian brand with real history. The ebonite feed, comfortable section, wide nib range including double broad, and supplied cartridges and converter make it easy to live with. Its weaknesses are largely aesthetic, namely the uneven character of the swirl material and the question of steel versus gold at 120 euros. As a smooth, reliable daily writer, it earns its place on the desk.
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