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.

Filter + View Grid
List

Filter

Refine

view all

Availability

Brands

clear

Ink Type

Colour

Nib Size

Filling Mechanism

Product Type

Diamond 580 ALR (Nickel Gray) - Fine fountain pen, showcasing a clear barrel with piston filling, steel nib, matte aluminum detailing, and screw-on cap.
TWSBI
Diamond 580 ALR (Nickel Gray) - Fine
-
$129.00
X
Diamond 580 ALR (Nickel Gray) - Fine fountain pen, showcasing a clear barrel with piston filling, steel nib, matte aluminum detailing, and screw-on cap.
/ 1 / 2 / 3

Diamond 580 ALR (Nickel Gray) - Fine

$129.00

TWSBI

More Details →
VAC 700R (Clear) - Medium fountain pen with transparent body, exposed nib, and visible ink reservoir, cap removed and placed beside for display.
TWSBI
VAC 700R (Clear) - Medium
-
$129.00
X
VAC 700R (Clear) - Medium fountain pen with transparent body, exposed nib, and visible ink reservoir, cap removed and placed beside for display.
/ 1 / 2 / 3

VAC 700R (Clear) - Medium

$129.00

TWSBI

More Details →
TWSBI ECO (Indigo Blue / Bronze) - Fine Fountain Pen
TWSBI
ECO (Indigo Blue / Bronze) - Fine
-
$105.00
X
TWSBI ECO (Indigo Blue / Bronze) - Fine Fountain Pen

ECO (Indigo Blue / Bronze) - Fine

$105.00

TWSBI

More Details →
TWSBI VAC 700R (IRIS) - Stub 1.1 Fountain Pen
TWSBI
VAC 700R (IRIS) - Stub 1.1
-
$159.00
X
TWSBI VAC 700R (IRIS) - Stub 1.1 Fountain Pen

VAC 700R (IRIS) - Stub 1.1

$159.00

TWSBI

More Details →
TWSBI TWSBI 1791 - Full Set of 6 Inks Bottled Ink
TWSBI
TWSBI 1791 - Full Set of 6 Inks
-
$64.50
X
TWSBI TWSBI 1791 - Full Set of 6 Inks Bottled Ink
/ 1 / 2 / 3 / 4 / 5 / 6 / 7

TWSBI 1791 - Full Set of 6 Inks

$64.50

TWSBI

More Details →
ECO (Transparent Purple) - Stub 1.1mm fountain pen shown uncapped with silver nib and capped, featuring a clear body and translucent purple cap and ends.
TWSBI
ECO (Transparent Purple) - Stub 1.1mm
-
$59.99
X
ECO (Transparent Purple) - Stub 1.1mm fountain pen shown uncapped with silver nib and capped, featuring a clear body and translucent purple cap and ends.

ECO (Transparent Purple) - Stub 1.1mm

$59.99

TWSBI

More Details →
TWSBI GO (Clear) - Medium Fountain Pen
TWSBI
GO (Clear) - Medium
-
$35.00
X
TWSBI GO (Clear) - Medium Fountain Pen
/ 1 / 2

GO (Clear) - Medium

$35.00

TWSBI

More Details →
TWSBI GO (Clear) - Broad Fountain Pen
TWSBI
GO (Clear) - Broad
-
$35.00
X
TWSBI GO (Clear) - Broad Fountain Pen
/ 1 / 2

GO (Clear) - Broad

$35.00

TWSBI

More Details →
Two clear-body TWSBI GO (Smoke) - Stub 1.1 fountain pens; one capped, one uncapped showing a steel nib and piston-style ink chamber.
TWSBI
GO (Smoke) - Stub 1.1
-
$35.00
X
Two clear-body TWSBI GO (Smoke) - Stub 1.1 fountain pens; one capped, one uncapped showing a steel nib and piston-style ink chamber.
/ 1 / 2

GO (Smoke) - Stub 1.1

$35.00

TWSBI

More Details →
Diamond 580 ALR (Nickel Gray) - Medium: Two clear-body fountain pens, one uncapped showing the nib, with silver-tone trim and matte detailing on grip and cap.
TWSBI
Diamond 580 ALR (Nickel Gray) - Medium
-
$129.00
X
Diamond 580 ALR (Nickel Gray) - Medium: Two clear-body fountain pens, one uncapped showing the nib, with silver-tone trim and matte detailing on grip and cap.
/ 1 / 2 / 3

Diamond 580 ALR (Nickel Gray) - Medium

$129.00

TWSBI

More Details →
TWSBI ECO (Clear) - Broad fountain pen, disassembled, showcasing a transparent barrel with piston mechanism, metal nib section, and cap with metal clip and red gasket.
TWSBI
ECO (Clear) - Broad
-
$59.99
X
TWSBI ECO (Clear) - Broad fountain pen, disassembled, showcasing a transparent barrel with piston mechanism, metal nib section, and cap with metal clip and red gasket.

ECO (Clear) - Broad

$59.99

TWSBI

More Details →
Transparent TWSBI ECO (Black) - Broad fountain pen, uncapped to show piston mechanism, with black trim and silver nib, alongside a capped version for comparison.
TWSBI
ECO (Black) - Broad
-
$59.99
X
Transparent TWSBI ECO (Black) - Broad fountain pen, uncapped to show piston mechanism, with black trim and silver nib, alongside a capped version for comparison.

ECO (Black) - Broad

$59.99

TWSBI

More Details →
TWSBI ECO (Indigo Blue / Bronze) - Broad Fountain Pen
TWSBI
ECO (Indigo Blue / Bronze) - Broad
-
$105.00
X
TWSBI ECO (Indigo Blue / Bronze) - Broad Fountain Pen

ECO (Indigo Blue / Bronze) - Broad

$105.00

TWSBI

More Details →
TWSBI Diamond Mini Rose Gold II (White) - Fine Fountain Pen
TWSBI
Diamond Mini Rose Gold II (White) - Fine
-
$135.00
X
TWSBI Diamond Mini Rose Gold II (White) - Fine Fountain Pen

Diamond Mini Rose Gold II (White) - Fine

$135.00

TWSBI

More Details →
TWSBI Diamond Mini Rose Gold II (White) - Stub 1.1 Fountain Pen
TWSBI
Diamond Mini Rose Gold II (White) - Stub 1.1
-
$139.00
X
TWSBI Diamond Mini Rose Gold II (White) - Stub 1.1 Fountain Pen

Diamond Mini Rose Gold II (White) - Stub 1.1

$139.00

TWSBI

More Details →
TWSBI VAC 700R (IRIS) - Extra Fine Fountain Pen
TWSBI
VAC 700R (IRIS) - Extra Fine
-
$150.00
X
TWSBI VAC 700R (IRIS) - Extra Fine Fountain Pen

VAC 700R (IRIS) - Extra Fine

$150.00

TWSBI

More Details →
TWSBI TWSBI Blue Black - 70ml Bottled Ink
TWSBI
TWSBI Blue Black - 70ml
-
$32.00
X
TWSBI TWSBI Blue Black - 70ml Bottled Ink
/ 1 / 2 / 3

TWSBI Blue Black - 70ml

$32.00

TWSBI

More Details →
TWSBI TWSBI Red - 2ml Ink Sample
TWSBI
TWSBI Red - 2ml
-
$2.00
X
TWSBI TWSBI Red - 2ml Ink Sample
/ 1 / 2

TWSBI Red - 2ml

$2.00

TWSBI

More Details →
ECO-T (Clear) - Fine fountain pen with a transparent body, showcasing its piston-filling mechanism, steel nib, and pronounced grip for structured pen handling.
TWSBI
ECO-T (Clear) - Fine
-
$59.99
X
ECO-T (Clear) - Fine fountain pen with a transparent body, showcasing its piston-filling mechanism, steel nib, and pronounced grip for structured pen handling.
/ 1 / 2 / 3

ECO-T (Clear) - Fine

$59.99

TWSBI

More Details →
Diamond 580 Nib Set - Stub 1.1, featuring a TWSBI-marked steel nib with feed and ink-converter, compatible with the Diamond 580 fountain pen range.
TWSBI
Diamond 580 Nib Set - Stub 1.1
-
$39.95
X
Diamond 580 Nib Set - Stub 1.1, featuring a TWSBI-marked steel nib with feed and ink-converter, compatible with the Diamond 580 fountain pen range.

Diamond 580 Nib Set - Stub 1.1

$39.95

TWSBI

More Details →
TWSBI ECO (Smoke/ Rose Gold) - Stub 1.1mm Fountain Pen
TWSBI
ECO (Smoke/ Rose Gold) - Stub 1.1mm
-
$105.00
X
TWSBI ECO (Smoke/ Rose Gold) - Stub 1.1mm Fountain Pen
/ 1 / 2

ECO (Smoke/ Rose Gold) - Stub 1.1mm

$105.00

TWSBI

More Details →
TWSBI Diamond Mini Rose Gold II (White) - Medium Fountain Pen
TWSBI
Diamond Mini Rose Gold II (White) - Medium
-
$135.00
X
TWSBI Diamond Mini Rose Gold II (White) - Medium Fountain Pen

Diamond Mini Rose Gold II (White) - Medium

$135.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Prussian Blue) - Fine fountain pen, featuring an uncapped clear barrel showing a steel nib and piston-filling mechanism, alongside a capped version.
TWSBI
Diamond 580 ALR (Prussian Blue) - Fine
-
$129.00
X
TWSBI Diamond 580 ALR (Prussian Blue) - Fine fountain pen, featuring an uncapped clear barrel showing a steel nib and piston-filling mechanism, alongside a capped version.

Diamond 580 ALR (Prussian Blue) - Fine

$129.00

TWSBI

More Details →
Two transparent TWSBI GO (Sapphire) - Broad fountain pens, one capped, one uncapped showing metal nib and ink reservoir, highlighting the pen's spring piston filling mechanism.
TWSBI
GO (Sapphire) - Broad
-
$35.00
X
Two transparent TWSBI GO (Sapphire) - Broad fountain pens, one capped, one uncapped showing metal nib and ink reservoir, highlighting the pen's spring piston filling mechanism.

GO (Sapphire) - Broad

$35.00

TWSBI

More Details →
TWSBI GO (Smoke) - Extra Fine fountain pen, featuring a transparent body with a visible piston-fill ink reservoir; one pen capped, the other uncapped showing the nib.
TWSBI
GO (Smoke) - Extra Fine
-
$35.00
X
TWSBI GO (Smoke) - Extra Fine fountain pen, featuring a transparent body with a visible piston-fill ink reservoir; one pen capped, the other uncapped showing the nib.
/ 1 / 2

GO (Smoke) - Extra Fine

$35.00

TWSBI

More Details →
Diamond 580 ALR (Nickel Gray) - Stub 1.1 fountain pen, showcasing a clear body with a stainless-steel nib, capped and uncapped views highlighting its aluminum grip and piston-filler mechanism.
TWSBI
Diamond 580 ALR (Nickel Gray) - Stub 1.1
-
$129.00
X
Diamond 580 ALR (Nickel Gray) - Stub 1.1 fountain pen, showcasing a clear body with a stainless-steel nib, capped and uncapped views highlighting its aluminum grip and piston-filler mechanism.
/ 1 / 2 / 3

Diamond 580 ALR (Nickel Gray) - Stub 1.1

$129.00

TWSBI

More Details →
TWSBI ECO (White) - Extra Fine, clear-barrel fountain pen with white trim, silver clip. Features piston-filling mechanism, shown capped and uncapped.
TWSBI
ECO (White) - Extra Fine
-
$59.99
X
TWSBI ECO (White) - Extra Fine, clear-barrel fountain pen with white trim, silver clip. Features piston-filling mechanism, shown capped and uncapped.

ECO (White) - Extra Fine

$59.99

TWSBI

More Details →
TWSBI ECO (Serpentine / Bronze) - Stub 1.1 Fountain Pen
TWSBI
ECO (Serpentine / Bronze) - Extra Fine
-
$105.00
X
TWSBI ECO (Serpentine / Bronze) - Stub 1.1 Fountain Pen
/ 1 / 2 / 3 / 4 / 5

ECO (Serpentine / Bronze) - Extra Fine

$105.00

TWSBI

More Details →
TWSBI ECO (Amazonite) - Extra Fine Fountain Pen
TWSBI
ECO (Amazonite) - Medium
-
$68.00
X
TWSBI ECO (Amazonite) - Extra Fine Fountain Pen
/ 1 / 2 / 3

ECO (Amazonite) - Medium

$68.00

TWSBI

More Details →
TWSBI ECO (Irish Green/ Onyx) - Medium Fountain Pen
TWSBI
ECO (Irish Green/ Onyx) - Medium
-
$105.00
X
TWSBI ECO (Irish Green/ Onyx) - Medium Fountain Pen
/ 1 / 2 / 3

ECO (Irish Green/ Onyx) - Medium

$105.00

TWSBI

More Details →
TWSBI ECO (Indigo Blue / Bronze) - Extra Fine Fountain Pen
TWSBI
ECO (Indigo Blue / Bronze) - Extra Fine
-
$105.00
X
TWSBI ECO (Indigo Blue / Bronze) - Extra Fine Fountain Pen

ECO (Indigo Blue / Bronze) - Extra Fine

$105.00

TWSBI

More Details →
TWSBI ECO (Glow Purple) - Medium Fountain Pen
TWSBI
ECO (Glow Purple) - Medium
-
$59.99
X
TWSBI ECO (Glow Purple) - Medium Fountain Pen
/ 1 / 2

ECO (Glow Purple) - Medium

$59.99

TWSBI

More Details →
TWSBI ECO (Caffe / Bronze) - Fine Fountain Pen Sold Out
TWSBI
ECO (Caffe / Bronze) - Fine
-
$105.00
X
TWSBI ECO (Caffe / Bronze) - Fine Fountain Pen
/ 1 / 2 / 3 / 4
Sold Out

ECO (Caffe / Bronze) - Fine

$105.00

TWSBI

This product is sold out

More Details →
TWSBI ECO (Smoke / Rose Gold) - Extra Fine Fountain Pen Sold Out
TWSBI
ECO (Smoke / Rose Gold) - Extra Fine
-
$105.00
X
TWSBI ECO (Smoke / Rose Gold) - Extra Fine Fountain Pen
/ 1 / 2
Sold Out

ECO (Smoke / Rose Gold) - Extra Fine

$105.00

TWSBI

This product is sold out

More Details →
TWSBI Diamond 580 ALR (Prussian Blue) - Medium Fountain Pen Sold Out
TWSBI
Diamond 580 ALR (Prussian Blue) - Medium
-
$129.00
X
TWSBI Diamond 580 ALR (Prussian Blue) - Medium Fountain Pen
Sold Out

Diamond 580 ALR (Prussian Blue) - Medium

$129.00

TWSBI

This product is sold out

More Details →
TWSBI TWSBI Black - 70ml Bottled Ink Sold Out
TWSBI
TWSBI Black - 70ml
-
$32.00
X
TWSBI TWSBI Black - 70ml Bottled Ink
/ 1 / 2 / 3
Sold Out

TWSBI Black - 70ml

$32.00

TWSBI

This product is sold out

More Details →
ECO (Transparent Blue) - Stub 1.1mm fountain pen featuring a clear barrel with visible piston-filling mechanism, screw-on translucent blue cap, and engraved TWSBI logo. Sold Out
TWSBI
ECO (Transparent Blue) - Stub 1.1mm
-
$59.99
X
ECO (Transparent Blue) - Stub 1.1mm fountain pen featuring a clear barrel with visible piston-filling mechanism, screw-on translucent blue cap, and engraved TWSBI logo.
/ 1 / 2
Sold Out

ECO (Transparent Blue) - Stub 1.1mm

$59.99

TWSBI

This product is sold out

More Details →
Diamond 580 Nib Set - Stub 1.5 features a polished steel nib with decorative etching, attached to its grip, alongside an ink converter assembly. Sold Out
TWSBI
Diamond 580 Nib Set - Stub 1.5
-
$39.95
X
Diamond 580 Nib Set - Stub 1.5 features a polished steel nib with decorative etching, attached to its grip, alongside an ink converter assembly.
Sold Out

Diamond 580 Nib Set - Stub 1.5

$39.95

TWSBI

This product is sold out

More Details →
TWSBI ECO (Carrara / Onyx) - Fine Fountain Pen Sold Out
TWSBI
ECO (Carrara / Onyx) - Stub 1.1
-
$105.00
X
TWSBI ECO (Carrara / Onyx) - Fine Fountain Pen
/ 1 / 2 / 3 / 4
Sold Out

ECO (Carrara / Onyx) - Stub 1.1

$105.00

TWSBI

This product is sold out

More Details →
TWSBI ECO (Espresso / Bronze) - Extra Fine Fountain Pen Sold Out
TWSBI
ECO (Espresso / Bronze) - Extra Fine
-
$105.00
X
TWSBI ECO (Espresso / Bronze) - Extra Fine Fountain Pen
/ 1 / 2 / 3
Sold Out

ECO (Espresso / Bronze) - Extra Fine

$105.00

TWSBI

This product is sold out

More Details →
View All