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

clear

Brands

clear

Colour

clear

Nib Size

Filling Mechanism

Product Type

new ECO (Carrara / Onyx) - Stub 1.1
TWSBI
ECO (Carrara / Onyx) - Stub 1.1
-
$105.00
X
ECO (Carrara / Onyx) - Stub 1.1
/ 1 / 2 / 3 / 4

ECO (Carrara / Onyx) - Stub 1.1

$105.00

TWSBI

More Details →
new TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
TWSBI
ECO (Serpentine / Bronze) - Extra Fine
-
$105.00
X
TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
/ 1 / 2 / 3 / 4 / 5

ECO (Serpentine / Bronze) - Extra Fine

$105.00

TWSBI

More Details →
new TWSBI ECO fountain pen in Matcha colourway with transparent body and green accents
TWSBI
ECO (Matcha) - Medium
-
$59.99
X
TWSBI ECO fountain pen in Matcha colourway with transparent body and green accents
/ 1 / 2 / 3 / 4

ECO (Matcha) - Medium

$59.99

TWSBI

More Details →
new TWSBI ECO (Espresso/Bronze) - Extra Fine fountain pens showing clear barrels, one uncapped to display the nib and piston-filling mechanism, with brown caps and gold trim.
TWSBI
ECO (Espresso / Bronze) - Extra Fine
-
$95.00
X
TWSBI ECO (Espresso/Bronze) - Extra Fine fountain pens showing clear barrels, one uncapped to display the nib and piston-filling mechanism, with brown caps and gold trim.
/ 1 / 2 / 3

ECO (Espresso / Bronze) - Extra Fine

$95.00

TWSBI

More Details →
ECO (Irish Green/Onyx) - Extra Fine fountain pen with a clear barrel, green trim, capped and uncapped, revealing the black steel nib and piston fill mechanism.
TWSBI
ECO (Irish Green/ Onyx) - Extra Fine
-
$95.00
X
ECO (Irish Green/Onyx) - Extra Fine fountain pen with a clear barrel, green trim, capped and uncapped, revealing the black steel nib and piston fill mechanism.
/ 1 / 2 / 3

ECO (Irish Green/ Onyx) - Extra Fine

$95.00

TWSBI

More Details →
ECO (Irish Green/Onyx) - Extra Fine fountain pen with a clear barrel, green trim, capped and uncapped, revealing the black steel nib and piston fill mechanism.
TWSBI
ECO (Irish Green/ Onyx) - Broad
-
$95.00
X
ECO (Irish Green/Onyx) - Extra Fine fountain pen with a clear barrel, green trim, capped and uncapped, revealing the black steel nib and piston fill mechanism.
/ 1 / 2 / 3

ECO (Irish Green/ Onyx) - Broad

$95.00

TWSBI

More Details →
TWSBI ECO fountain pen in Caffe/Bronze, featuring a Stub 1.1 nib, clear barrel, and piston fill mechanism. One pen is capped, the other uncapped, revealing the nib.
TWSBI
ECO (Caffe / Bronze) - Stub 1.1
-
$95.00
X
TWSBI ECO fountain pen in Caffe/Bronze, featuring a Stub 1.1 nib, clear barrel, and piston fill mechanism. One pen is capped, the other uncapped, revealing the nib.
/ 1 / 2 / 3 / 4

ECO (Caffe / Bronze) - Stub 1.1

$95.00

TWSBI

More Details →
TWSBI Glass Ball Ink Holder with fountain pen, showcasing polished glass design for fountain pen ink, next to a rose-gold-trim fountain pen on a wooden surface.
TWSBI
Glass Ball Ink Holder
-
$155.00
X
TWSBI Glass Ball Ink Holder with fountain pen, showcasing polished glass design for fountain pen ink, next to a rose-gold-trim fountain pen on a wooden surface.
/ 1 / 2 / 3 / 4 / 5 / 6

Glass Ball Ink Holder

$155.00

TWSBI

More Details →
TWSBI ECO-T (Saffron) fountain pen shown capped and uncapped, featuring a piston filling mechanism, extra fine steel nib, and orange accents.
TWSBI
ECO-T (Saffron) - Extra Fine
-
$59.99
X
TWSBI ECO-T (Saffron) fountain pen shown capped and uncapped, featuring a piston filling mechanism, extra fine steel nib, and orange accents.
/ 1 / 2

ECO-T (Saffron) - Extra Fine

$59.99

TWSBI

More Details →
TWSBI ECO-T Pen and Ink Set (Royal Jade/Rose Gold) with Fine nib, featuring a clear barrel and piston converter, includes a 15ml Midnight Blue fountain pen ink bottle.
TWSBI
ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Fine
-
$129.00
X
TWSBI ECO-T Pen and Ink Set (Royal Jade/Rose Gold) with Fine nib, featuring a clear barrel and piston converter, includes a 15ml Midnight Blue fountain pen ink bottle.
/ 1 / 2 / 3 / 4

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

$129.00

TWSBI

More Details →
TWSBI ECO-T Pen and Ink Set (Royal Jade/Rose Gold) with Medium nib, featuring a clear barrel and piston converter, includes a 15ml Midnight Blue fountain pen ink bottle.
TWSBI
ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Medium
-
$129.00
X
TWSBI ECO-T Pen and Ink Set (Royal Jade/Rose Gold) with Medium nib, featuring a clear barrel and piston converter, includes a 15ml Midnight Blue fountain pen ink bottle.
/ 1 / 2 / 3 / 4

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

$129.00

TWSBI

More Details →
TWSBI ECO (Cerulean) - Broad fountain pen with clear barrel, turquoise cap, and stainless-steel nib, featuring a piston-fill mechanism for high ink capacity.
TWSBI
ECO (Cerulean) - Broad
-
$59.99
X
TWSBI ECO (Cerulean) - Broad fountain pen with clear barrel, turquoise cap, and stainless-steel nib, featuring a piston-fill mechanism for high ink capacity.

ECO (Cerulean) - Broad

$59.99

TWSBI

More Details →
TWSBI ECO (Cerulean) - Stub 1.1mm fountain pen with clear barrel, turquoise cap, and stainless-steel nib, featuring a piston-fill mechanism for high ink capacity.
TWSBI
ECO (Cerulean) - Stub 1.1mm
-
$59.99
X
TWSBI ECO (Cerulean) - Stub 1.1mm fountain pen with clear barrel, turquoise cap, and stainless-steel nib, featuring a piston-fill mechanism for high ink capacity.

ECO (Cerulean) - Stub 1.1mm

$59.99

TWSBI

More Details →
TWSBI Diamond 580 (Iris) - Fine, clear demonstrator fountain pen with rainbow trim, featuring a steel nib and piston-filling mechanism. One pen uncapped, showcasing components.
TWSBI
Diamond 580 (Iris) - Fine
-
$155.00
X
TWSBI Diamond 580 (Iris) - Fine, clear demonstrator fountain pen with rainbow trim, featuring a steel nib and piston-filling mechanism. One pen uncapped, showcasing components.
/ 1 / 2 / 3 / 4

Diamond 580 (Iris) - Fine

$155.00

TWSBI

More Details →
TWSBI Diamond 580 (White/Rose Gold) - fine fountain pen, featuring a clear demonstrator barrel, rose-gold nib, and visible piston-filling mechanism, shown capped and uncapped.
TWSBI
Diamond 580 (White/Rose Gold) - Fine
-
$155.00
X
TWSBI Diamond 580 (White/Rose Gold) - fine fountain pen, featuring a clear demonstrator barrel, rose-gold nib, and visible piston-filling mechanism, shown capped and uncapped.

Diamond 580 (White/Rose Gold) - Fine

$155.00

TWSBI

More Details →
TWSBI Diamond 580 ALR Navy Blue Fine fountain pen, transparent body with blue anodized trim, uncapped showing stainless-steel nib and piston filling mechanism, ideal for fountain pen enthusiasts.
TWSBI
Diamond 580 ALR (Navy Blue) - Medium
-
$120.00
X
TWSBI Diamond 580 ALR Navy Blue Fine fountain pen, transparent body with blue anodized trim, uncapped showing stainless-steel nib and piston filling mechanism, ideal for fountain pen enthusiasts.

Diamond 580 ALR (Navy Blue) - Medium

$120.00

TWSBI

More Details →
TWSBI Spring Loaded Converter Accessories
TWSBI
Spring Loaded Converter
-
$7.00
X
TWSBI Spring Loaded Converter Accessories

Spring Loaded Converter

$7.00

TWSBI

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

Diamond Mini Rose Gold II (White) - Broad

$135.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Punch Pink) - Fine Fountain Pen
TWSBI
Diamond 580 ALR (Punch Pink) - Fine
-
$120.00
X
TWSBI Diamond 580 ALR (Punch Pink) - Fine Fountain Pen
/ 1 / 2 / 3

Diamond 580 ALR (Punch Pink) - Fine

$120.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Prussian Blue) - Broad fountain pen, clear body, aluminium grip, uncapped showing metal nib and section, with screw-on cap beside it.
TWSBI
Diamond 580 ALR (Prussian Blue) - Broad
-
$120.00
X
TWSBI Diamond 580 ALR (Prussian Blue) - Broad fountain pen, clear body, aluminium grip, uncapped showing metal nib and section, with screw-on cap beside it.

Diamond 580 ALR (Prussian Blue) - Broad

$120.00

TWSBI

More Details →
VAC20A Ink Bottle - Orange: A clear glass vessel with a black screw-on midsection and translucent orange cap, designed for TWSBI pen refilling.
TWSBI
VAC20A Ink Bottle - Orange
-
$29.00
X
VAC20A Ink Bottle - Orange: A clear glass vessel with a black screw-on midsection and translucent orange cap, designed for TWSBI pen refilling.
/ 1 / 2 / 3 / 4 / 5

VAC20A Ink Bottle - Orange

$29.00

TWSBI

More Details →
TWSBI ECO (Transparent Blue) - Extra Fine fountain pen with a clear barrel, visible ink reservoir, and blue screw-on cap beside it, showcasing a piston-filling mechanism.
TWSBI
ECO (Transparent Blue) - Extra Fine
-
$59.99
X
TWSBI ECO (Transparent Blue) - Extra Fine fountain pen with a clear barrel, visible ink reservoir, and blue screw-on cap beside it, showcasing a piston-filling mechanism.
/ 1 / 2

ECO (Transparent Blue) - Extra Fine

$59.99

TWSBI

More Details →
Diamond Mini (Clear) - Medium fountain pens showing piston-filling mechanisms. One capped, one uncapped revealing stainless-steel nib, with transparent barrels and silver-colored trim.
TWSBI
Diamond Mini (Clear) - Medium
-
$92.00
X
Diamond Mini (Clear) - Medium fountain pens showing piston-filling mechanisms. One capped, one uncapped revealing stainless-steel nib, with transparent barrels and silver-colored trim.
/ 1 / 2

Diamond Mini (Clear) - Medium

$92.00

TWSBI

More Details →
Diamond Mini (Clear) - Extra Fine fountain pen, with a transparent body showing the piston-filling mechanism. One pen is capped, the other reveals the metal nib.
TWSBI
Diamond Mini (Clear) - Extra Fine
-
$92.00
X
Diamond Mini (Clear) - Extra Fine fountain pen, with a transparent body showing the piston-filling mechanism. One pen is capped, the other reveals the metal nib.
/ 1 / 2

Diamond Mini (Clear) - Extra Fine

$92.00

TWSBI

More Details →
VAC 700R (Clear) - Broad fountain pen with a transparent barrel, visible piston mechanism, metal nib, and detached cap marked “TWSBI”, showcasing its vacuum filling system.
TWSBI
VAC 700R (Clear) - Broad
-
$129.00
X
VAC 700R (Clear) - Broad fountain pen with a transparent barrel, visible piston mechanism, metal nib, and detached cap marked “TWSBI”, showcasing its vacuum filling system.
/ 1 / 2 / 3

VAC 700R (Clear) - Broad

$129.00

TWSBI

More Details →
new Diamond 580 ALR (Affogato with Onyx) - Stub 1.1 fountain pen featuring a clear barrel, piston mechanism, and orange metal accents, showcasing its elegant design and functionality.
TWSBI
Diamond 580 ALR (Affogato with Onyx) - Extra Fine
-
$155.00
X
Diamond 580 ALR (Affogato with Onyx) - Stub 1.1 fountain pen featuring a clear barrel, piston mechanism, and orange metal accents, showcasing its elegant design and functionality.
/ 1 / 2 / 3

Diamond 580 ALR (Affogato with Onyx) - Extra Fine

$155.00

TWSBI

More Details →
new TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
TWSBI
ECO (Serpentine / Bronze) - Broad
-
$105.00
X
TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
/ 1 / 2 / 3 / 4 / 5

ECO (Serpentine / Bronze) - Broad

$105.00

TWSBI

More Details →
new Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
TWSBI
ECO (Slate Blue / Onyx) - Extra Fine
-
$95.00
X
Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
/ 1 / 2 / 3

ECO (Slate Blue / Onyx) - Extra Fine

$95.00

TWSBI

More Details →
new Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
TWSBI
ECO (Slate Blue / Onyx) - Fine
-
$95.00
X
Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
/ 1 / 2 / 3

ECO (Slate Blue / Onyx) - Fine

$95.00

TWSBI

More Details →
new Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
TWSBI
ECO (Slate Blue / Onyx) - Medium
-
$95.00
X
Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
/ 1 / 2 / 3

ECO (Slate Blue / Onyx) - Medium

$95.00

TWSBI

More Details →
new Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
TWSBI
ECO (Slate Blue / Onyx) - Broad
-
$95.00
X
Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
/ 1 / 2 / 3

ECO (Slate Blue / Onyx) - Broad

$95.00

TWSBI

More Details →
new Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
TWSBI
ECO (Slate Blue / Onyx) - Stub 1.1
-
$95.00
X
Two TWSBI ECO (Slate Blue/Onyx) - Extra Fine fountain pens, one capped, one uncapped, showcasing clear barrels with visible piston-filling mechanisms and blue end caps.
/ 1 / 2 / 3

ECO (Slate Blue / Onyx) - Stub 1.1

$95.00

TWSBI

More Details →
TWSBI ECO (Sky Blue) - Extra Fine fountain pen, capped and uncapped, with clear barrel showcasing piston-fill mechanism, sky-blue cap, and stainless steel nib.
TWSBI
ECO (Sky Blue) - Stub 1.1
-
$59.99
X
TWSBI ECO (Sky Blue) - Extra Fine fountain pen, capped and uncapped, with clear barrel showcasing piston-fill mechanism, sky-blue cap, and stainless steel nib.
/ 1 / 2 / 3

ECO (Sky Blue) - Stub 1.1

$59.99

TWSBI

More Details →
TWSBI ECO (Amazonite) - Extra Fine fountain pens, featuring clear barrels and mint-green marbling, showcasing a piston-filling mechanism and stainless-steel nib.
TWSBI
ECO (Amazonite) - Fine
-
$68.00
X
TWSBI ECO (Amazonite) - Extra Fine fountain pens, featuring clear barrels and mint-green marbling, showcasing a piston-filling mechanism and stainless-steel nib.
/ 1 / 2 / 3

ECO (Amazonite) - Fine

$68.00

TWSBI

More Details →
TWSBI ECO (Amazonite) - Extra Fine fountain pens, featuring clear barrels and mint-green marbling, showcasing a piston-filling mechanism and stainless-steel nib.
TWSBI
ECO (Amazonite) - Broad
-
$68.00
X
TWSBI ECO (Amazonite) - Extra Fine fountain pens, featuring clear barrels and mint-green marbling, showcasing a piston-filling mechanism and stainless-steel nib.
/ 1 / 2 / 3

ECO (Amazonite) - Broad

$68.00

TWSBI

More Details →
TWSBI ECO (Amazonite) - Extra Fine fountain pens, featuring clear barrels and mint-green marbling, showcasing a piston-filling mechanism and stainless-steel nib.
TWSBI
ECO (Amazonite) - Stub 1.1
-
$68.00
X
TWSBI ECO (Amazonite) - Extra Fine fountain pens, featuring clear barrels and mint-green marbling, showcasing a piston-filling mechanism and stainless-steel nib.
/ 1 / 2 / 3

ECO (Amazonite) - Stub 1.1

$68.00

TWSBI

More Details →
TWSBI VAC 700R (Kyanite) - Extra Fine fountain pen with a clear demonstrator design, showcasing a transparent barrel and cap, featuring a vacuum system and blue trim.
TWSBI
VAC 700R (Kyanite) - Fine
-
$150.00
X
TWSBI VAC 700R (Kyanite) - Extra Fine fountain pen with a clear demonstrator design, showcasing a transparent barrel and cap, featuring a vacuum system and blue trim.
/ 1 / 2 / 3 / 4

VAC 700R (Kyanite) - Fine

$150.00

TWSBI

More Details →
TWSBI VAC 700R (Kyanite) - Extra Fine fountain pen with a clear demonstrator design, showcasing a transparent barrel and cap, featuring a vacuum system and blue trim.
TWSBI
VAC 700R (Kyanite) - Medium
-
$150.00
X
TWSBI VAC 700R (Kyanite) - Extra Fine fountain pen with a clear demonstrator design, showcasing a transparent barrel and cap, featuring a vacuum system and blue trim.
/ 1 / 2 / 3 / 4

VAC 700R (Kyanite) - Medium

$150.00

TWSBI

More Details →
TWSBI ECO fountain pen in Caffe/Bronze, featuring a medium nib, clear barrel, and piston fill mechanism. One pen is capped, the other uncapped, revealing the nib.
TWSBI
ECO (Caffe / Bronze) - Medium
-
$95.00
X
TWSBI ECO fountain pen in Caffe/Bronze, featuring a medium nib, clear barrel, and piston fill mechanism. One pen is capped, the other uncapped, revealing the nib.
/ 1 / 2 / 3 / 4

ECO (Caffe / Bronze) - Medium

$95.00

TWSBI

More Details →
TWSBI Diamond 580ALR (Black) - extra fine fountain pen, transparent body with piston mechanism, steel nib, and matte aluminium grip, showcasing elegant design and functionality.
TWSBI
Diamond 580 ALR (Black) - Extra Fine
-
$120.00
X
TWSBI Diamond 580ALR (Black) - extra fine fountain pen, transparent body with piston mechanism, steel nib, and matte aluminium grip, showcasing elegant design and functionality.
/ 1 / 2 / 3 / 4 / 5

Diamond 580 ALR (Black) - Extra Fine

$120.00

TWSBI

More Details →
View All