Esterbrook gold nib under a laboratory magnifying glass
Iguana Esterbrook

Pen Week 2026 · The Writing Lab

Nib
Test_

It all begins with the nib.

Fine, medium, smooth or flexible. A nib is much more than the width of a line. Discover how it shapes your writing and find the one that suits you best.

Find your nib TEST 01 / 06 · 27 OCTOBER

02 — The nib

One small piece.
Endless ways to write.

Some fountain pens win us over with their design, their materials or their history. But when the nib touches the paper, the real experience begins.

Its width, its geometry, its response and the way it lays down ink can completely transform how writing feels.

And even if two nibs look the same, a few lines are enough to reveal their differences.

01 — LINE WIDTH

The same word. Different strokes.

The size of our handwriting and the width of the nib are closely related. A fine line can bring precision; a broader one lets you appreciate the ink’s colour and richness.

EFExtra fine

Maximum precision for small handwriting and delicate strokes.

FFine

Control and definition for everyday writing.

MMedium

A balance of precision, flow and presence.

BBroad

Broad strokes that put every word centre stage.

Nib sizes vary from brand to brand. The letters are a guide, not a universal standard.

Iguana Magazine · Writing guide

Fine, broad, smooth or flexible?

Discover which nib suits the way you write.

Did you know that two nibs of the same width can write completely differently? Find out how the size of your handwriting, the nib material, flexibility, ink and even the way you hold your pen all come into play.

Read the article
Gold nib of a fountain pen

03 — The experiment

Now it’s your turn.
Which nib suits your writing?

You’ve seen some of the features that set each nib apart. Now it’s time to find out which ones best suit the way you write.

Nib Test · 3 questions

Three questions. Three choices.
One personalised recommendation.

  1. 01What’s your handwriting like?
  2. 02What kind of line do you prefer?
  3. 03What do you look for when you write?

04 — The results

Your writing has
a character of its own.

Choose a nib and discover the fountain pens we’ve selected for every writing style.

Result F

Precision in every stroke

Your writing leans towards precision and detail.

A fine nib can help you achieve well-defined letters and compact writing, especially if you have small handwriting or enjoy delicate strokes.

Your trait Precision

A selection for you · Nib: F

We’ve selected fountain pens with features that may match your result.

Explore fountain pens
[Product photo]
Nib: F · 01[Brand · Model][Price]
[Product photo]
Nib: F · 02[Brand · Model][Price]
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Nib: F · 03[Brand · Model][Price]
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Nib: F · 04[Brand · Model][Price]

Your result is meant as a guide. How writing feels also depends on the nib’s design, the ink, the paper and the way you hold your fountain pen.

05 — Iguana Personal Advisor

Your formula is personal.
So is our advice.

The Writing Lab tests are the starting point for discovering your preferences. But choosing a fountain pen also means finding the one that suits your hand, your writing and the way you like to use it.

Thinking of buying a fountain pen?

Our team of specialists can help you choose, with your needs, preferences and budget in mind.

ONLINE · BY APPOINTMENT

Speak to a specialist

Book an appointment with our team for personalised advice.

Book an appointment

06 — The Writing Lab · Special experience

Your handwriting says a lot about you.

Because everyone’s handwriting is as unique as they are.

At The Writing Lab we explore writing instruments, but there’s something that makes them truly personal: the way you write.

Graphology invites us to look at the strokes, slant and size of our letters and explore what they might suggest about our personality.

Discover what your handwriting says about you
Iguana Lab Graphology Laboratory card with a green Esterbrook fountain pen and the Pen Week 2026 brochure

Graphology offers interpretations for guidance only, not scientifically validated personality assessments.

07 — Analysis

The tests

Six ways to explore your writing. Find out which features suit you best through short interactive experiences.

Ruthenium-toned fountain pen nib
Test 01Tue 27

Nib Test

It all begins at the tip.

Find the nib that suits your hand.

Take the test
Orange and grey marbled resin cap
Test 02Wed 28

Material Test

Touch writes too.

Find the material that feels like you.

Take the test
Red resin fountain pen with gold clip
Test 03Thu 29

Design Test

Your style writes too.

Find the design that says who you are.

Take the test
Converter and gold nib
Test 04Fri 30

Filling Test

Every pen has its ritual.

Find your filling system.

Take the test
Bottle of gold ink
Test 05Sat 31

Ink Test

Bring colour to your words.

Find the ink that’s unmistakably you.

Take the test
Engraved metal cap and gold section of a fountain pen
Test 06Sun 1

Balance Test

Weight changes the feel.

Discover your ideal pen weight.

Take the test