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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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
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$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

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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
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$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.
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VAC 700R (Clear) - Broad

$129.00

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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
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$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.
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Diamond 580 ALR (Affogato with Onyx) - Extra Fine

$155.00

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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
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$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.
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ECO (Slate Blue / Onyx) - Extra Fine

$95.00

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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
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$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.
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ECO (Slate Blue / Onyx) - Medium

$95.00

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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
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$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

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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
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$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.
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ECO (Slate Blue / Onyx) - Stub 1.1

$95.00

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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
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$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.
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ECO (Sky Blue) - Stub 1.1

$59.99

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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
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$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.
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ECO (Amazonite) - Fine

$68.00

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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
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$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.
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ECO (Amazonite) - Broad

$68.00

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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
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$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.
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ECO (Amazonite) - Stub 1.1

$68.00

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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
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$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.
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VAC 700R (Kyanite) - Fine

$150.00

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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
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$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.
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VAC 700R (Kyanite) - Medium

$150.00

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

$59.99

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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
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$95.00
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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.
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ECO (Caffe / Bronze) - Medium

$95.00

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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
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$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.
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Diamond 580 ALR (Black) - Extra Fine

$120.00

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TWSBI ECO fountain pen in Creme/Rose Gold, featuring a clear acrylic body, stub 1.1 steel nib, and piston filling mechanism, showcasing elegant rose-gold-tone trim.
TWSBI
ECO (Creme / Rose Gold) - Stub 1.1
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$95.00
X
TWSBI ECO fountain pen in Creme/Rose Gold, featuring a clear acrylic body, stub 1.1 steel nib, and piston filling mechanism, showcasing elegant rose-gold-tone trim.
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ECO (Creme / Rose Gold) - Stub 1.1

$95.00

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TWSBI Kai (LE) - Broad fountain pen with blue-black marbled resin, rose-gold trim, and gold nib. Includes ink window and screw-on cap.
TWSBI
TWSBI Kai (LE) - Broad
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$235.00
X
TWSBI Kai (LE) - Broad fountain pen with blue-black marbled resin, rose-gold trim, and gold nib. Includes ink window and screw-on cap.
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TWSBI Kai (LE) - Broad

$235.00

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

Diamond Mini AL (Grape) - Fine

$109.00

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TWSBI ECO-T (Saffron) - Fine Fountain Pen
TWSBI
ECO-T (Saffron) - Fine
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$59.99
X
TWSBI ECO-T (Saffron) - Fine Fountain Pen
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ECO-T (Saffron) - Fine

$59.99

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TWSBI ECO-T (Saffron) - Broad Fountain Pen
TWSBI
ECO-T (Saffron) - Broad
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$59.99
X
TWSBI ECO-T (Saffron) - Broad Fountain Pen
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ECO-T (Saffron) - Broad

$59.99

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TWSBI ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Stub 1.1mm Fountain Pen
TWSBI
ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Stub 1.1mm
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$129.00
X
TWSBI ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Stub 1.1mm Fountain Pen
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ECO-T Pen and Ink Set (Royal Jade / Rose Gold) - Stub 1.1mm

$129.00

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TWSBI SWIPE (Blue Ice) - Stub 1.1mm Fountain Pen
TWSBI
SWIPE (Blue Ice) - Stub 1.1mm
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$43.50
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TWSBI SWIPE (Blue Ice) - Stub 1.1mm Fountain Pen
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SWIPE (Blue Ice) - Stub 1.1mm

$43.50

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TWSBI ECO (Cerulean) - Extra Fine Fountain Pen
TWSBI
ECO (Cerulean) - Extra Fine
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$59.99
X
TWSBI ECO (Cerulean) - Extra Fine Fountain Pen

ECO (Cerulean) - Extra Fine

$59.99

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TWSBI ECO (Transparent Yellow) - Fine Fountain Pen
TWSBI
ECO (Transparent Yellow) - Fine
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$59.99
X
TWSBI ECO (Transparent Yellow) - Fine Fountain Pen
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ECO (Transparent Yellow) - Fine

$59.99

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

ECO (Glow) - Fine

$59.99

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TWSBI Diamond 580 (Iris) - Extra Fine Fountain Pen
TWSBI
Diamond 580 (Iris) - Extra Fine
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$155.00
X
TWSBI Diamond 580 (Iris) - Extra Fine Fountain Pen
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Diamond 580 (Iris) - Extra Fine

$155.00

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TWSBI SWIPE (Salmon) - Medium Fountain Pen
TWSBI
SWIPE (Salmon) - Medium
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$43.50
X
TWSBI SWIPE (Salmon) - Medium Fountain Pen
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SWIPE (Salmon) - Medium

$43.50

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TWSBI Diamond 580 ALR (Navy Blue) - Extra Fine Fountain Pen
TWSBI
Diamond 580 ALR (Navy Blue) - Extra Fine
-
$120.00
X
TWSBI Diamond 580 ALR (Navy Blue) - Extra Fine Fountain Pen

Diamond 580 ALR (Navy Blue) - Extra Fine

$120.00

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TWSBI Diamond 580 ALR (Navy Blue) - Broad Fountain Pen
TWSBI
Diamond 580 ALR (Navy Blue) - Broad
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$120.00
X
TWSBI Diamond 580 ALR (Navy Blue) - Broad Fountain Pen

Diamond 580 ALR (Navy Blue) - Broad

$120.00

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TWSBI Blue - Ink Cartridges Pack Ink Cartridges
TWSBI
Blue - Ink Cartridges Pack
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$10.50
X
TWSBI Blue - Ink Cartridges Pack Ink Cartridges

Blue - Ink Cartridges Pack

$10.50

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TWSBI SWIPE (Smoke) - Fine Fountain Pen
TWSBI
SWIPE (Smoke) - Fine
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$43.50
X
TWSBI SWIPE (Smoke) - Fine Fountain Pen
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SWIPE (Smoke) - Fine

$43.50

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TWSBI SWIPE (Smoke) - Stub 1.1mm Fountain Pen
TWSBI
SWIPE (Smoke) - Stub 1.1mm
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$43.50
X
TWSBI SWIPE (Smoke) - Stub 1.1mm Fountain Pen
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SWIPE (Smoke) - Stub 1.1mm

$43.50

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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. Sold Out
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
Sold Out

Diamond Mini (Clear) - Fine

$92.00

TWSBI

This product is sold out

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new ECO (Plum / Onyx) - Extra Fine Sold Out
TWSBI
ECO (Plum / Onyx) - Extra Fine
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$105.00
X
ECO (Plum / Onyx) - Extra Fine
/ 1 / 2 / 3
Sold Out

ECO (Plum / Onyx) - Extra Fine

$105.00

TWSBI

This product is sold out

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new ECO (Plum / Onyx) - Broad Sold Out
TWSBI
ECO (Plum / Onyx) - Broad
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$105.00
X
ECO (Plum / Onyx) - Broad
/ 1 / 2 / 3
Sold Out

ECO (Plum / Onyx) - Broad

$105.00

TWSBI

This product is sold out

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new ECO (Plum / Onyx) - Stub 1.1 Sold Out
TWSBI
ECO (Plum / Onyx) - Stub 1.1
-
$105.00
X
ECO (Plum / Onyx) - Stub 1.1
/ 1 / 2 / 3
Sold Out

ECO (Plum / Onyx) - Stub 1.1

$105.00

TWSBI

This product is sold out

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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. Sold Out
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
Sold Out

Diamond 580 ALR (Affogato with Onyx) - Broad

$155.00

TWSBI

This product is sold out

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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. Sold Out
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.
Sold Out

ECO (Heat) - Extra Fine

$59.99

TWSBI

This product is sold out

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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. Sold Out
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.
Sold Out

ECO (Heat) - Broad

$59.99

TWSBI

This product is sold out

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