TWSBI

TWSBI fountain pens are known for precision engineering, smooth nibs, and generous ink capacity. Explore the full lineup, including the entry-level Eco and Eco-T, aluminium-bodied 580AL and 580ALR, piston-filled Vac700R, beginner-friendly Go, compact Swipe, and Gemini. TWSBI also offers a growing range of bottled inks, perfect for pairing with any of their refillable pens. Whether you're writing daily or building your collection, there's a TWSBI for every writer.

Looking for ink? Browse our full range of TWSBI bottled inks and samples.

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TWSBI ECO (Smoke / Rose Gold) - Broad Fountain Pen
TWSBI
ECO (Smoke / Rose Gold) - Broad
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$105.00
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TWSBI ECO (Smoke / Rose Gold) - Broad Fountain Pen
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ECO (Smoke / Rose Gold) - Broad

$105.00

TWSBI

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TWSBI Diamond 580 ALR (Punch Pink) - Stub 1.1 Fountain Pen
TWSBI
Diamond 580 ALR (Punch Pink) - Stub 1.1
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$129.00
X
TWSBI Diamond 580 ALR (Punch Pink) - Stub 1.1 Fountain Pen
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Diamond 580 ALR (Punch Pink) - Stub 1.1

$129.00

TWSBI

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TWSBI ECO (Transparent Purple) - Broad Fountain Pen
TWSBI
ECO (Transparent Purple) - Broad
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$59.99
X
TWSBI ECO (Transparent Purple) - Broad Fountain Pen

ECO (Transparent Purple) - Broad

$59.99

TWSBI

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TWSBI GO (Clear) - Fine Fountain Pen
TWSBI
GO (Clear) - Fine
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$35.00
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TWSBI GO (Clear) - Fine Fountain Pen
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GO (Clear) - Fine

$35.00

TWSBI

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ECO-T (Clear) - Broad fountain pen with transparent barrel and cap, metal ink-reservoir converter, broad steel nib, and pronounced grip section for improved technique.
TWSBI
ECO-T (Clear) - Broad
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$59.99
X
ECO-T (Clear) - Broad fountain pen with transparent barrel and cap, metal ink-reservoir converter, broad steel nib, and pronounced grip section for improved technique.
/ 1 / 2 / 3

ECO-T (Clear) - Broad

$59.99

TWSBI

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Diamond 580AL (Silver) - Broad fountain pen, showcasing a clear barrel with visible piston mechanism, silver grip, and a detached clear/silver cap.
TWSBI
Diamond 580AL (Silver) - Broad
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$129.00
X
Diamond 580AL (Silver) - Broad fountain pen, showcasing a clear barrel with visible piston mechanism, silver grip, and a detached clear/silver cap.
/ 1 / 2

Diamond 580AL (Silver) - Broad

$129.00

TWSBI

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new TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen Preorder
TWSBI
ECO (Black Marble/ Bronze) - Fine
-
$105.00
X
TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen
/ 1 / 2 / 3 / 4
Preorder

ECO (Black Marble/ Bronze) - Fine

$105.00

TWSBI

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new TWSBI Obsidian (LE) - Medium Fountain Pen
TWSBI
Obsidian (LE) - Medium
-
$250.00
X
TWSBI Obsidian (LE) - Medium Fountain Pen
/ 1 / 2 / 3 / 4 / 5

Obsidian (LE) - Medium

$250.00

TWSBI

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TWSBI Diamond 580 ALR (Affogato with Onyx) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Affogato with Onyx) - Stub 1.1
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$169.00
X
TWSBI Diamond 580 ALR (Affogato with Onyx) - Medium Fountain Pen
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Diamond 580 ALR (Affogato with Onyx) - Stub 1.1

$169.00

TWSBI

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TWSBI ECO (Espresso / Bronze) - Extra Fine Fountain Pen
TWSBI
ECO (Espresso / Bronze) - Stub 1.1
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$105.00
X
TWSBI ECO (Espresso / Bronze) - Extra Fine Fountain Pen
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ECO (Espresso / Bronze) - Stub 1.1

$105.00

TWSBI

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TWSBI ECO (Espresso / Bronze) - Extra Fine Fountain Pen
TWSBI
ECO (Espresso / Bronze) - Broad
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$105.00
X
TWSBI ECO (Espresso / Bronze) - Extra Fine Fountain Pen
/ 1 / 2 / 3

ECO (Espresso / Bronze) - Broad

$105.00

TWSBI

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TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen
TWSBI
Diamond 580 ALR (Caribbean with Onyx) - Extra Fine
-
$169.00
X
TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen

Diamond 580 ALR (Caribbean with Onyx) - Extra Fine

$169.00

TWSBI

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TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen
TWSBI
Diamond 580 ALR (Caribbean with Onyx) - Medium
-
$169.00
X
TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen

Diamond 580 ALR (Caribbean with Onyx) - Medium

$169.00

TWSBI

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TWSBI ECO (Sky Blue) - Broad Fountain Pen
TWSBI
ECO (Sky Blue) - Broad
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$59.99
X
TWSBI ECO (Sky Blue) - Broad Fountain Pen
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ECO (Sky Blue) - Broad

$59.99

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TWSBI ECO (Amazonite) - Extra Fine Fountain Pen
TWSBI
ECO (Amazonite) - Extra Fine
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$68.00
X
TWSBI ECO (Amazonite) - Extra Fine Fountain Pen
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ECO (Amazonite) - Extra Fine

$68.00

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TWSBI ECO-T (Eggplant) - Stub 1.1 Fountain Pen
TWSBI
ECO-T (Eggplant) - Medium
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$59.99
X
TWSBI ECO-T (Eggplant) - Stub 1.1 Fountain Pen
/ 1 / 2

ECO-T (Eggplant) - Medium

$59.99

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TWSBI Diamond 580 ALR (Iceberg) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Iceberg) - Extra Fine
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$129.00
X
TWSBI Diamond 580 ALR (Iceberg) - Medium Fountain Pen
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Diamond 580 ALR (Iceberg) - Extra Fine

$129.00

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TWSBI Diamond 580 ALR (Iceberg) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Iceberg) - Fine
-
$129.00
X
TWSBI Diamond 580 ALR (Iceberg) - Medium Fountain Pen
/ 1 / 2 / 3

Diamond 580 ALR (Iceberg) - Fine

$129.00

TWSBI

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TWSBI Diamond 580 ALR (Iceberg) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Iceberg) - Stub 1.1
-
$129.00
X
TWSBI Diamond 580 ALR (Iceberg) - Medium Fountain Pen
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Diamond 580 ALR (Iceberg) - Stub 1.1

$129.00

TWSBI

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TWSBI Diamond 580 ALR (Black) - Broad Fountain Pen
TWSBI
Diamond 580 ALR (Black) - Broad
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$129.00
X
TWSBI Diamond 580 ALR (Black) - Broad Fountain Pen
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Diamond 580 ALR (Black) - Broad

$129.00

TWSBI

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TWSBI Diamond 580 ALR (Black) - Stub 1.1 Fountain Pen
TWSBI
Diamond 580 ALR (Black) - Stub 1.1
-
$129.00
X
TWSBI Diamond 580 ALR (Black) - Stub 1.1 Fountain Pen
/ 1 / 2 / 3 / 4 / 5

Diamond 580 ALR (Black) - Stub 1.1

$129.00

TWSBI

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TWSBI Diamond 580 ALR (Sunset Yellow) - Fine Fountain Pen
TWSBI
Diamond 580 ALR (Sunset Yellow) - Fine
-
$129.00
X
TWSBI Diamond 580 ALR (Sunset Yellow) - Fine Fountain Pen

Diamond 580 ALR (Sunset Yellow) - Fine

$129.00

TWSBI

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TWSBI Diamond 580 ALR (Sunset Yellow) - Broad Fountain Pen
TWSBI
Diamond 580 ALR (Sunset Yellow) - Broad
-
$129.00
X
TWSBI Diamond 580 ALR (Sunset Yellow) - Broad Fountain Pen

Diamond 580 ALR (Sunset Yellow) - Broad

$129.00

TWSBI

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TWSBI Diamond 580 ALR (Sunset Yellow) - Stub 1.1 Fountain Pen
TWSBI
Diamond 580 ALR (Sunset Yellow) - Stub 1.1
-
$129.00
X
TWSBI Diamond 580 ALR (Sunset Yellow) - Stub 1.1 Fountain Pen

Diamond 580 ALR (Sunset Yellow) - Stub 1.1

$129.00

TWSBI

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TWSBI ECO (Heat) - Fine Fountain Pen
TWSBI
ECO (Heat) - Fine
-
$59.99
X
TWSBI ECO (Heat) - Fine Fountain Pen

ECO (Heat) - Fine

$59.99

TWSBI

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TWSBI ECO (Heat) - Stub 1.1 Fountain Pen
TWSBI
ECO (Heat) - Stub 1.1
-
$59.99
X
TWSBI ECO (Heat) - Stub 1.1 Fountain Pen

ECO (Heat) - Stub 1.1

$59.99

TWSBI

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TWSBI ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Broad Fountain Pen
TWSBI
ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Broad
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$129.00
X
TWSBI ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Broad Fountain Pen
/ 1 / 2 / 3 / 4

ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Broad

$129.00

TWSBI

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TWSBI Diamond 580 ALR (Punch Pink) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Punch Pink) - Medium
-
$129.00
X
TWSBI Diamond 580 ALR (Punch Pink) - Medium Fountain Pen
/ 1 / 2 / 3

Diamond 580 ALR (Punch Pink) - Medium

$129.00

TWSBI

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Diamond 580AL (Silver) - Medium fountain pen, uncapped, showcasing transparent barrel, steel nib, piston mechanism, and silver trim, with a clear cap featuring a metal clip.
TWSBI
Diamond 580AL (Silver) - Medium
-
$129.00
X
Diamond 580AL (Silver) - Medium fountain pen, uncapped, showcasing transparent barrel, steel nib, piston mechanism, and silver trim, with a clear cap featuring a metal clip.
/ 1 / 2

Diamond 580AL (Silver) - Medium

$129.00

TWSBI

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Diamond Mini (Clear) - Broad fountain pens, featuring a transparent body and silver trim; one capped, the other uncapped to show the stainless-steel nib.
TWSBI
Diamond Mini (Clear) - Broad
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$92.00
X
Diamond Mini (Clear) - Broad fountain pens, featuring a transparent body and silver trim; one capped, the other uncapped to show the stainless-steel nib.
/ 1 / 2

Diamond Mini (Clear) - Broad

$92.00

TWSBI

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new TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen Preorder
TWSBI
ECO (Black Marble/ Bronze) - Medium
-
$105.00
X
TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen
/ 1 / 2 / 3 / 4
Preorder

ECO (Black Marble/ Bronze) - Medium

$105.00

TWSBI

More Details →
new TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen Preorder
TWSBI
ECO (Black Marble/ Bronze) - Broad
-
$105.00
X
TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen
/ 1 / 2 / 3 / 4
Preorder

ECO (Black Marble/ Bronze) - Broad

$105.00

TWSBI

More Details →
new TWSBI Obsidian (LE) - Medium Fountain Pen
TWSBI
Obsidian (LE) - Broad
-
$250.00
X
TWSBI Obsidian (LE) - Medium Fountain Pen
/ 1 / 2 / 3 / 4 / 5

Obsidian (LE) - Broad

$250.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Affogato with Onyx) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Affogato with Onyx) - Fine
-
$169.00
X
TWSBI Diamond 580 ALR (Affogato with Onyx) - Medium Fountain Pen
/ 1 / 2 / 3

Diamond 580 ALR (Affogato with Onyx) - Fine

$169.00

TWSBI

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TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen
TWSBI
Diamond 580 ALR (Caribbean with Onyx) - Fine
-
$169.00
X
TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen

Diamond 580 ALR (Caribbean with Onyx) - Fine

$169.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen
TWSBI
Diamond 580 ALR (Caribbean with Onyx) - Broad
-
$169.00
X
TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen

Diamond 580 ALR (Caribbean with Onyx) - Broad

$169.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen
TWSBI
Diamond 580 ALR (Caribbean with Onyx) - Stub 1.1
-
$169.00
X
TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine Fountain Pen

Diamond 580 ALR (Caribbean with Onyx) - Stub 1.1

$169.00

TWSBI

More Details →
TWSBI ECO-T (Eggplant) - Stub 1.1 Fountain Pen
TWSBI
ECO-T (Eggplant) - Extra Fine
-
$59.99
X
TWSBI ECO-T (Eggplant) - Stub 1.1 Fountain Pen
/ 1 / 2

ECO-T (Eggplant) - Extra Fine

$59.99

TWSBI

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new TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen Sold Out
TWSBI
ECO (Black Marble/ Bronze) - Stub 1.1
-
$105.00
X
TWSBI ECO (Black Marble/ Bronze) - Stub 1.1 Fountain Pen
/ 1 / 2 / 3 / 4
Sold Out

ECO (Black Marble/ Bronze) - Stub 1.1

$105.00

TWSBI

This product is sold out

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Diamond Mini AL (Silver) - Fine fountain pen with clear barrel, visible piston mechanism, metal nib, and cap set aside, showcasing compact, sturdy design. Sold Out
TWSBI
Diamond Mini AL (Silver) - Fine
-
$109.00
X
Diamond Mini AL (Silver) - Fine fountain pen with clear barrel, visible piston mechanism, metal nib, and cap set aside, showcasing compact, sturdy design.
Sold Out

Diamond Mini AL (Silver) - Fine

$109.00

TWSBI

This product is sold out

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