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

Colour

Nib Size

Filling Mechanism

clear

Product Type

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) - Broad
-
$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) - Broad

$120.00

TWSBI

More Details →
TWSBI SWIPE (Smoke) - Fine Fountain Pen
TWSBI
SWIPE (Smoke) - Fine
-
$43.50
X
TWSBI SWIPE (Smoke) - Fine Fountain Pen
/ 1 / 2 / 3

SWIPE (Smoke) - Fine

$43.50

TWSBI

More Details →
TWSBI SWIPE (Smoke) - Stub 1.1mm Fountain Pen
TWSBI
SWIPE (Smoke) - Stub 1.1mm
-
$43.50
X
TWSBI SWIPE (Smoke) - Stub 1.1mm Fountain Pen
/ 1 / 2 / 3

SWIPE (Smoke) - Stub 1.1mm

$43.50

TWSBI

More Details →
TWSBI ECO (Smoke / Rose Gold) - Broad Fountain Pen
TWSBI
ECO (Smoke / Rose Gold) - Broad
-
$95.00
X
TWSBI ECO (Smoke / Rose Gold) - Broad Fountain Pen
/ 1 / 2

ECO (Smoke / Rose Gold) - Broad

$95.00

TWSBI

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

ECO (Transparent Purple) - Broad

$59.99

TWSBI

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

GO (Clear) - Fine

$35.00

TWSBI

More Details →
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
-
$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

More Details →
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
-
$120.00
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

$120.00

TWSBI

More Details →
Diamond Mini (Clear) - Fine fountain pen, featuring a transparent body with silver trim. One pen capped, the other uncapped, showcasing the steel nib and piston mechanism.
TWSBI
Diamond Mini (Clear) - Fine
-
$92.00
X
Diamond Mini (Clear) - Fine fountain pen, featuring a transparent body with silver trim. One pen capped, the other uncapped, showcasing the steel nib and piston mechanism.
/ 1 / 2

Diamond Mini (Clear) - Fine

$92.00

TWSBI

More Details →
new ECO (Carrara / Onyx) - Fine
TWSBI
ECO (Carrara / Onyx) - Fine
-
$105.00
X
ECO (Carrara / Onyx) - Fine
/ 1 / 2 / 3 / 4

ECO (Carrara / Onyx) - Fine

$105.00

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) - Broad
-
$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) - Broad

$155.00

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) - Stub 1.1
-
$165.00
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) - Stub 1.1

$165.00

TWSBI

More Details →
new TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
TWSBI
ECO (Serpentine / Bronze) - Stub 1.1
-
$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) - Stub 1.1

$105.00

TWSBI

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

ECO (Matcha) - Extra Fine

$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) - Broad
-
$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) - Broad

$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) - Extra Fine
-
$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) - Extra Fine

$59.99

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) - Medium
-
$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) - Medium

$59.99

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) - Broad
-
$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) - Broad

$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) - Extra 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) - Extra Fine

$68.00

TWSBI

More Details →
TWSBI ECO-T (Eggplant) fountain pen with transparent body, purple accents, and mediummm stainless-steel nib, showcasing internal piston-filling mechanism.
TWSBI
ECO-T (Eggplant) - Medium
-
$59.99
X
TWSBI ECO-T (Eggplant) fountain pen with transparent body, purple accents, and mediummm stainless-steel nib, showcasing internal piston-filling mechanism.
/ 1 / 2

ECO-T (Eggplant) - Medium

$59.99

TWSBI

More Details →
TWSBI ECO-T (Eggplant) fountain pen with transparent body, purple accents, and mediummm stainless-steel nib, showcasing internal piston-filling mechanism.
TWSBI
ECO-T (Eggplant) - Broad
-
$59.99
X
TWSBI ECO-T (Eggplant) fountain pen with transparent body, purple accents, and mediummm stainless-steel nib, showcasing internal piston-filling mechanism.
/ 1 / 2

ECO-T (Eggplant) - Broad

$59.99

TWSBI

More Details →
TWSBI ECO-T (Eggplant) fountain pen with transparent body, purple accents, and mediummm stainless-steel nib, showcasing internal piston-filling mechanism.
TWSBI
ECO-T (Eggplant) - Stub 1.1
-
$59.99
X
TWSBI ECO-T (Eggplant) fountain pen with transparent body, purple accents, and mediummm stainless-steel nib, showcasing internal piston-filling mechanism.
/ 1 / 2

ECO-T (Eggplant) - Stub 1.1

$59.99

TWSBI

More Details →
TWSBI Diamond 580 ALR (Iceberg) fountain pen, extra fine nib, clear with light blue accents, showcasing piston-fill mechanism and transparent body.
TWSBI
Diamond 580 ALR (Iceberg) - Fine
-
$120.00
X
TWSBI Diamond 580 ALR (Iceberg) fountain pen, extra fine nib, clear with light blue accents, showcasing piston-fill mechanism and transparent body.
/ 1 / 2 / 3

Diamond 580 ALR (Iceberg) - Fine

$120.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Iceberg) fountain pen, extra fine nib, clear with light blue accents, showcasing piston-fill mechanism and transparent body.
TWSBI
Diamond 580 ALR (Iceberg) - Medium
-
$120.00
X
TWSBI Diamond 580 ALR (Iceberg) fountain pen, extra fine nib, clear with light blue accents, showcasing piston-fill mechanism and transparent body.
/ 1 / 2 / 3

Diamond 580 ALR (Iceberg) - Medium

$120.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Iceberg) fountain pen, extra fine nib, clear with light blue accents, showcasing piston-fill mechanism and transparent body.
TWSBI
Diamond 580 ALR (Iceberg) - Stub 1.1
-
$120.00
X
TWSBI Diamond 580 ALR (Iceberg) fountain pen, extra fine nib, clear with light blue accents, showcasing piston-fill mechanism and transparent body.
/ 1 / 2 / 3

Diamond 580 ALR (Iceberg) - Stub 1.1

$120.00

TWSBI

More Details →
TWSBI ECO (Dark Sapphire) fountain pen, broad nib, showcasing clear barrel and bright blue cap; one pen capped, one uncapped revealing metal nib.
TWSBI
ECO (Dark Sapphire) - Broad
-
$59.99
X
TWSBI ECO (Dark Sapphire) fountain pen, broad nib, showcasing clear barrel and bright blue cap; one pen capped, one uncapped revealing metal nib.
/ 1 / 2

ECO (Dark Sapphire) - Broad

$59.99

TWSBI

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

$120.00

TWSBI

More Details →
TWSBI Diamond 580ALR (Black) - medium fountain pen, transparent body with piston mechanism, steel nib, and matte aluminium grip, showcasing elegant design and functionality.
TWSBI
Diamond 580 ALR (Black) - Medium
-
$120.00
X
TWSBI Diamond 580ALR (Black) - medium 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) - Medium

$120.00

TWSBI

More Details →
TWSBI Diamond 580ALR (Black) - broad fountain pen, transparent body with piston mechanism, steel nib, and matte aluminium grip, showcasing elegant design and functionality.
TWSBI
Diamond 580 ALR (Black) - Broad
-
$120.00
X
TWSBI Diamond 580ALR (Black) - broad 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) - Broad

$120.00

TWSBI

More Details →
TWSBI Diamond 580ALR (Black) - Stub 1.1 fountain pen, transparent body with piston mechanism, steel nib, and matte aluminium grip, showcasing elegant design and functionality.
TWSBI
Diamond 580 ALR (Black) - Stub 1.1
-
$120.00
X
TWSBI Diamond 580ALR (Black) - Stub 1.1 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) - Stub 1.1

$120.00

TWSBI

More Details →
TWSBI Kai (LE) - extra fine fountain pen with blue-black marbled resin, rose-gold trim, and gold nib. Includes ink window and screw-on cap.
TWSBI
TWSBI Kai (LE) - Extra Fine
-
$235.00
X
TWSBI Kai (LE) - extra fine fountain pen with blue-black marbled resin, rose-gold trim, and gold nib. Includes ink window and screw-on cap.
/ 1 / 2 / 3

TWSBI Kai (LE) - Extra Fine

$235.00

TWSBI

More Details →
TWSBI Kai (LE) - Fine fountain pen with blue-black marbled resin, rose-gold trim, and gold nib. Includes ink window and screw-on cap.
TWSBI
TWSBI Kai (LE) - Fine
-
$235.00
X
TWSBI Kai (LE) - Fine fountain pen with blue-black marbled resin, rose-gold trim, and gold nib. Includes ink window and screw-on cap.
/ 1 / 2 / 3

TWSBI Kai (LE) - Fine

$235.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Sunset Yellow) - Extra Fine fountain pen, showcasing a clear body with metallic trim, featuring a piston-filling mechanism and detachable parts for easy maintenance.
TWSBI
Diamond 580 ALR (Sunset Yellow) - Extra Fine
-
$120.00
X
TWSBI Diamond 580 ALR (Sunset Yellow) - Extra Fine fountain pen, showcasing a clear body with metallic trim, featuring a piston-filling mechanism and detachable parts for easy maintenance.

Diamond 580 ALR (Sunset Yellow) - Extra Fine

$120.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Sunset Yellow) - Fine fountain pen, showcasing a clear body with metallic trim, featuring a piston-filling mechanism and detachable parts for easy maintenance.
TWSBI
Diamond 580 ALR (Sunset Yellow) - Fine
-
$120.00
X
TWSBI Diamond 580 ALR (Sunset Yellow) - Fine fountain pen, showcasing a clear body with metallic trim, featuring a piston-filling mechanism and detachable parts for easy maintenance.

Diamond 580 ALR (Sunset Yellow) - Fine

$120.00

TWSBI

More Details →
TWSBI Diamond 580 ALR (Sunset Yellow) - Medium fountain pen, showcasing a clear body with metallic trim, featuring a piston-filling mechanism and detachable parts for easy maintenance.
TWSBI
Diamond 580 ALR (Sunset Yellow) - Medium
-
$120.00
X
TWSBI Diamond 580 ALR (Sunset Yellow) - Medium fountain pen, showcasing a clear body with metallic trim, featuring a piston-filling mechanism and detachable parts for easy maintenance.

Diamond 580 ALR (Sunset Yellow) - Medium

$120.00

TWSBI

More Details →
TWSBI ECO (Heat) - Extra Fine fountain pens, featuring clear barrels with bright orange caps, one capped and one uncapped, highlighting the metal nib and piston mechanism.
TWSBI
ECO (Heat) - Extra Fine
-
$59.99
X
TWSBI ECO (Heat) - Extra Fine fountain pens, featuring clear barrels with bright orange caps, one capped and one uncapped, highlighting the metal nib and piston mechanism.

ECO (Heat) - Extra Fine

$59.99

TWSBI

More Details →
TWSBI ECO (Heat) - Fine fountain pens, featuring clear barrels with bright orange caps, one capped and one uncapped, highlighting the metal nib and piston mechanism.
TWSBI
ECO (Heat) - Fine
-
$59.99
X
TWSBI ECO (Heat) - Fine fountain pens, featuring clear barrels with bright orange caps, one capped and one uncapped, highlighting the metal nib and piston mechanism.

ECO (Heat) - Fine

$59.99

TWSBI

More Details →
TWSBI ECO (Heat) - Broad fountain pens, featuring clear barrels with bright orange caps, one capped and one uncapped, highlighting the metal nib and piston mechanism.
TWSBI
ECO (Heat) - Broad
-
$59.99
X
TWSBI ECO (Heat) - Broad fountain pens, featuring clear barrels with bright orange caps, one capped and one uncapped, highlighting the metal nib and piston mechanism.

ECO (Heat) - Broad

$59.99

TWSBI

More Details →
TWSBI Diamond Mini AL (Grape) - Broad fountain pen with transparent body, purple accents, and stainless-steel nib, showcasing capped and uncapped views for detailed appreciation.
TWSBI
Diamond Mini AL (Grape) - Broad
-
$109.00
X
TWSBI Diamond Mini AL (Grape) - Broad fountain pen with transparent body, purple accents, and stainless-steel nib, showcasing capped and uncapped views for detailed appreciation.

Diamond Mini AL (Grape) - Broad

$109.00

TWSBI

More Details →
new TWSBI Precision (Gemini Blue) fountain pen with extra fine nib, featuring a faceted barrel, chrome trim, ink-view window, and piston filling mechanism. Sold Out
TWSBI
Precision (Gemini Blue) - Stub 1.1
-
$159.00
X
TWSBI Precision (Gemini Blue) fountain pen with extra fine nib, featuring a faceted barrel, chrome trim, ink-view window, and piston filling mechanism.
/ 1 / 2 / 3 / 4 / 5 / 6
Sold Out

Precision (Gemini Blue) - Stub 1.1

$159.00

TWSBI

This product is sold out

More Details →
View All