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

clear

Nib Size

clear

Filling Mechanism

Product Type

TWSBI VAC 700R (IRIS) - Medium Fountain Pen
TWSBI
VAC 700R (IRIS) - Medium
-
$150.00
X
TWSBI VAC 700R (IRIS) - Medium Fountain Pen

VAC 700R (IRIS) - Medium

$150.00

TWSBI

More Details →
TWSBI ECO (Clear) - Medium fountain pen, shown capped and uncapped, with visible piston-filling mechanism, stainless-steel nib, and metal clip on the screw-on cap.
TWSBI
ECO (Clear) - Medium
-
$59.99
X
TWSBI ECO (Clear) - Medium fountain pen, shown capped and uncapped, with visible piston-filling mechanism, stainless-steel nib, and metal clip on the screw-on cap.

ECO (Clear) - Medium

$59.99

TWSBI

More Details →
ECO (Black) - Medium fountain pen, demonstrator style, with one cap removed showing the nib and clear barrel displaying the piston-filling mechanism; another pen is capped.
TWSBI
ECO (Black) - Medium
-
$59.99
X
ECO (Black) - Medium fountain pen, demonstrator style, with one cap removed showing the nib and clear barrel displaying the piston-filling mechanism; another pen is capped.

ECO (Black) - Medium

$59.99

TWSBI

More Details →
ECO (Transparent Purple) - Medium fountain pen, uncapped showing steel nib and piston mechanism; capped view highlights purple cap with metal clip and clear reservoir.
TWSBI
ECO (Transparent Purple) - Medium
-
$59.99
X
ECO (Transparent Purple) - Medium fountain pen, uncapped showing steel nib and piston mechanism; capped view highlights purple cap with metal clip and clear reservoir.

ECO (Transparent Purple) - Medium

$59.99

TWSBI

More Details →
TWSBI Diamond 580 (Smoke/Rose Gold) - Medium Fountain Pen
TWSBI
Diamond 580 (Smoke/Rose Gold) - Medium
-
$155.00
X
TWSBI Diamond 580 (Smoke/Rose Gold) - Medium Fountain Pen

Diamond 580 (Smoke/Rose Gold) - Medium

$155.00

TWSBI

More Details →
ECO (White) - Medium fountain pen features a clear barrel, visible piston-fill system, white cap, silver trim, and medium nib. Ideal for ink level monitoring.
TWSBI
ECO (White) - Medium
-
$59.99
X
ECO (White) - Medium fountain pen features a clear barrel, visible piston-fill system, white cap, silver trim, and medium nib. Ideal for ink level monitoring.

ECO (White) - Medium

$59.99

TWSBI

More Details →
TWSBI ECO fountain pen in Creme/Rose Gold, featuring a clear acrylic body, Medium steel nib, and piston filling mechanism, showcasing elegant rose-gold-tone trim.
TWSBI
ECO (Creme / Rose Gold) - Medium
-
$95.00
X
TWSBI ECO fountain pen in Creme/Rose Gold, featuring a clear acrylic body, Medium steel nib, and piston filling mechanism, showcasing elegant rose-gold-tone trim.
/ 1 / 2 / 3 / 4

ECO (Creme / Rose Gold) - Medium

$95.00

TWSBI

More Details →
TWSBI ECO (Transparent Blue) - Medium, a clear-barrel fountain pen with blue accents, piston-filling mechanism, stainless-steel nib, and visible ink reservoir.
TWSBI
ECO (Transparent Blue) - Medium
-
$59.99
X
TWSBI ECO (Transparent Blue) - Medium, a clear-barrel fountain pen with blue accents, piston-filling mechanism, stainless-steel nib, and visible ink reservoir.
/ 1 / 2

ECO (Transparent Blue) - Medium

$59.99

TWSBI

More Details →
TWSBI GO (Sapphire) - Medium fountain pen: one capped, one uncapped showing stainless-steel nib and blue ink reservoir, highlighting its translucent design and piston filling mechanism.
TWSBI
GO (Sapphire) - Medium
-
$35.00
X
TWSBI GO (Sapphire) - Medium fountain pen: one capped, one uncapped showing stainless-steel nib and blue ink reservoir, highlighting its translucent design and piston filling mechanism.

GO (Sapphire) - Medium

$35.00

TWSBI

More Details →
TWSBI ECO (White/ Rose Gold) - Medium Fountain Pen
TWSBI
ECO (White/ Rose Gold) - Medium
-
$95.00
X
TWSBI ECO (White/ Rose Gold) - Medium Fountain Pen

ECO (White/ Rose Gold) - Medium

$95.00

TWSBI

More Details →
TWSBI ECO-T (Mint Blue) - Medium Fountain Pen
TWSBI
ECO-T (Mint Blue) - Medium
-
$59.99
X
TWSBI ECO-T (Mint Blue) - Medium Fountain Pen

ECO-T (Mint Blue) - Medium

$59.99

TWSBI

More Details →
TWSBI ECO fountain pen in Indigo Blue with bronze trim, featuring a clear barrel and visible piston mechanism. Includes one capped and one uncapped pen, fine nib.
TWSBI
ECO (Indigo Blue / Bronze) - Medium
-
$95.00
X
TWSBI ECO fountain pen in Indigo Blue with bronze trim, featuring a clear barrel and visible piston mechanism. Includes one capped and one uncapped pen, fine nib.

ECO (Indigo Blue / Bronze) - Medium

$95.00

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 →
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 →
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
-
$120.00
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

$120.00

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) - Medium
-
$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) - Medium

$95.00

TWSBI

More Details →
ECO-T (Clear) - Medium fountain pen with transparent barrel and cap, showcasing the internal piston-filling mechanism and a metal nib, designed for enhanced grip technique.
TWSBI
ECO-T (Clear) - Medium
-
$59.99
X
ECO-T (Clear) - Medium fountain pen with transparent barrel and cap, showcasing the internal piston-filling mechanism and a metal nib, designed for enhanced grip technique.
/ 1 / 2 / 3

ECO-T (Clear) - Medium

$59.99

TWSBI

More Details →
Two TWSBI GO (Smoke) - Medium fountain pens, one capped, the other uncapped, revealing a steel nib and ink-filled spring piston mechanism.
TWSBI
GO (Smoke) - Medium
-
$35.00
X
Two TWSBI GO (Smoke) - Medium fountain pens, one capped, the other uncapped, revealing a steel nib and ink-filled spring piston mechanism.
/ 1 / 2

GO (Smoke) - Medium

$35.00

TWSBI

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

$155.00

TWSBI

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

ECO (Smoke / Rose Gold) - Medium

$95.00

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) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Prussian Blue) - Medium
-
$120.00
X
TWSBI Diamond 580 ALR (Prussian Blue) - Medium Fountain Pen

Diamond 580 ALR (Prussian Blue) - Medium

$120.00

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) - Medium
-
$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) - Medium

$68.00

TWSBI

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

ECO-T (Saffron) - Medium

$59.99

TWSBI

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

ECO (Cerulean) - Medium

$59.99

TWSBI

More Details →
VAC Mini (Clear) - Medium fountain pen showcasing a transparent acrylic body, vacuum filling mechanism, stainless-steel nib, and a screw-on cap with a red TWSBI logo.
TWSBI
VAC Mini (Clear) - Medium
-
$110.00
X
VAC Mini (Clear) - Medium fountain pen showcasing a transparent acrylic body, vacuum filling mechanism, stainless-steel nib, and a screw-on cap with a red TWSBI logo.

VAC Mini (Clear) - Medium

$110.00

TWSBI

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

$105.00

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) - Medium
-
$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) - Medium

$95.00

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

Diamond Mini AL (Grape) - Medium

$109.00

TWSBI

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

Diamond 580 (White/Rose Gold) - Medium

$155.00

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) - 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-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 →
new ECO (Carrara / Onyx) - Medium Sold Out
TWSBI
ECO (Carrara / Onyx) - Medium
-
$105.00
X
ECO (Carrara / Onyx) - Medium
/ 1 / 2 / 3 / 4
Sold Out

ECO (Carrara / Onyx) - Medium

$105.00

TWSBI

This product is sold out

More Details →
View All