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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TWSBI ECO-T (Mint Blue) - Broad Fountain Pen
TWSBI
ECO-T (Mint Blue) - Broad
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$59.99
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TWSBI ECO-T (Mint Blue) - Broad Fountain Pen

ECO-T (Mint Blue) - Broad

$59.99

TWSBI

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TWSBI Diamond 50 Polished Aluminium Ink Bottle (50ml) Accessories
TWSBI
Diamond 50 Polished Aluminium Ink Bottle (50ml)
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$57.00
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TWSBI Diamond 50 Polished Aluminium Ink Bottle (50ml) Accessories
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Diamond 50 Polished Aluminium Ink Bottle (50ml)

$57.00

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GO (Clear) - Extra Fine fountain pen with visible nib section, transparent ink converter, and spring piston mechanism, shown with snap-on cap beside it.
TWSBI
GO (Clear) - Extra Fine
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$35.00
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GO (Clear) - Extra Fine fountain pen with visible nib section, transparent ink converter, and spring piston mechanism, shown with snap-on cap beside it.
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GO (Clear) - Extra Fine

$35.00

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VAC20A Ink Bottle - Green: Clear storage jar with a two-piece grinder lid, designed for TWSBI pen refills, featuring green top and black middle section.
TWSBI
VAC20A Ink Bottle - Green
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$29.00
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VAC20A Ink Bottle - Green: Clear storage jar with a two-piece grinder lid, designed for TWSBI pen refills, featuring green top and black middle section.
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VAC20A Ink Bottle - Green

$29.00

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TWSBI GO (Sapphire) - Extra Fine pen with clear body, translucent cap, blue barrel, steel nib, and visible piston filling mechanism, shown capped and uncapped.
TWSBI
GO (Sapphire) - Extra Fine
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$35.00
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TWSBI GO (Sapphire) - Extra Fine pen with clear body, translucent cap, blue barrel, steel nib, and visible piston filling mechanism, shown capped and uncapped.

GO (Sapphire) - Extra Fine

$35.00

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VAC 700R (Clear) - Extra Fine fountain pen with a transparent body, visible metal nib, and branded TWSBI cap beside it, showcasing its vacuum ink reservoir.
TWSBI
VAC 700R (Clear) - Extra Fine
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$129.00
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VAC 700R (Clear) - Extra Fine fountain pen with a transparent body, visible metal nib, and branded TWSBI cap beside it, showcasing its vacuum ink reservoir.
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VAC 700R (Clear) - Extra Fine

$129.00

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TWSBI VAC 700R (Clear) - Fine fountain pen, transparent barrel with piston mechanism, silver nib, clear cap with red TWSBI logo, uncapped.
TWSBI
VAC 700R (Clear) - Fine
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$129.00
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TWSBI VAC 700R (Clear) - Fine fountain pen, transparent barrel with piston mechanism, silver nib, clear cap with red TWSBI logo, uncapped.
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VAC 700R (Clear) - Fine

$129.00

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new TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
TWSBI
ECO (Serpentine / Bronze) - Fine
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$105.00
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TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
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ECO (Serpentine / Bronze) - Fine

$105.00

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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) - Fine
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$95.00
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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.
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ECO (Espresso / Bronze) - Fine

$95.00

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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) - Fine
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$95.00
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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.
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ECO (Irish Green/ Onyx) - Fine

$95.00

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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) - Stub 1.1
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$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.
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ECO (Irish Green/ Onyx) - Stub 1.1

$95.00

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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) - Stub 1.1
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$95.00
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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) - Stub 1.1

$95.00

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TWSBI ECO-T (Saffron) fountain pen shown capped and uncapped, featuring a piston filling mechanism, stub 1.1mm steel nib, and orange accents.
TWSBI
ECO-T (Saffron) - Stub 1.1mm
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$59.99
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TWSBI ECO-T (Saffron) fountain pen shown capped and uncapped, featuring a piston filling mechanism, stub 1.1mm steel nib, and orange accents.
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ECO-T (Saffron) - Stub 1.1mm

$59.99

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TWSBI Diamond 580 (Iris) - Stub 1.1, clear demonstrator fountain pen with rainbow trim, featuring a steel nib and piston-filling mechanism. One pen uncapped, showcasing components.
TWSBI
Diamond 580 (Iris) - Stub 1.1
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$165.00
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TWSBI Diamond 580 (Iris) - Stub 1.1, clear demonstrator fountain pen with rainbow trim, featuring a steel nib and piston-filling mechanism. One pen uncapped, showcasing components.
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Diamond 580 (Iris) - Stub 1.1

$165.00

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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) - Fine
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$120.00
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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) - Fine

$120.00

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TWSBI Diamond Mini Rose Gold II (White) - Extra Fine Fountain Pen
TWSBI
Diamond Mini Rose Gold II (White) - Extra Fine
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$135.00
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TWSBI Diamond Mini Rose Gold II (White) - Extra Fine Fountain Pen

Diamond Mini Rose Gold II (White) - Extra Fine

$135.00

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

Diamond 580 ALR (Prussian Blue) - Extra Fine

$120.00

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Diamond 580 (Smoke/Rose Gold) - Extra Fine fountain pens, featuring clear barrels with piston-filling. One capped, one uncapped; rose-gold trim and steel nib visible.
TWSBI
Diamond 580 (Smoke/Rose Gold) - Extra Fine
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$155.00
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Diamond 580 (Smoke/Rose Gold) - Extra Fine fountain pens, featuring clear barrels with piston-filling. One capped, one uncapped; rose-gold trim and steel nib visible.

Diamond 580 (Smoke/Rose Gold) - Extra Fine

$155.00

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TWSBI ECO (White/ Rose Gold) - Broad Fountain Pen
TWSBI
ECO (White/ Rose Gold) - Broad
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$95.00
X
TWSBI ECO (White/ Rose Gold) - Broad Fountain Pen

ECO (White/ Rose Gold) - Broad

$95.00

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ECO-T (Clear) - Extra Fine fountain pen with transparent barrel, visible nib, piston ink-filling mechanism, and clear cap with metal clip. Designed for improved grip technique.
TWSBI
ECO-T (Clear) - Extra Fine
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$59.99
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ECO-T (Clear) - Extra Fine fountain pen with transparent barrel, visible nib, piston ink-filling mechanism, and clear cap with metal clip. Designed for improved grip technique.
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ECO-T (Clear) - Extra Fine

$59.99

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ECO-T (Yellow Green) - Fine fountain pen with clear barrel showing piston mechanism; cap in bright lime/yellow with chrome clip and TWSBI branding.
TWSBI
ECO-T (Yellow Green) - Fine
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$59.99
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ECO-T (Yellow Green) - Fine fountain pen with clear barrel showing piston mechanism; cap in bright lime/yellow with chrome clip and TWSBI branding.
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ECO-T (Yellow Green) - Fine

$59.99

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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
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$110.00
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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

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VAC Mini (Clear) - Fine, a transparent TWSBI fountain pen with visible piston-filling mechanism and stainless steel nib, alongside its clear screw-on cap.
TWSBI
VAC Mini (Clear) - Fine
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$110.00
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VAC Mini (Clear) - Fine, a transparent TWSBI fountain pen with visible piston-filling mechanism and stainless steel nib, alongside its clear screw-on cap.

VAC Mini (Clear) - Fine

$110.00

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VAC Mini (Clear) - Extra Fine fountain pen with transparent barrel, visible piston-filling mechanism, stainless steel nib, and cap off to the side.
TWSBI
VAC Mini (Clear) - Extra Fine
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$110.00
X
VAC Mini (Clear) - Extra Fine fountain pen with transparent barrel, visible piston-filling mechanism, stainless steel nib, and cap off to the side.

VAC Mini (Clear) - Extra Fine

$110.00

TWSBI

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TWSBI ECO (White) - Broad: A clear demonstrator fountain pen, featuring a silver-trim, piston-fill mechanism, with cap on and off, revealing the steel nib and ink reservoir.
TWSBI
ECO (White) - Broad
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$59.99
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TWSBI ECO (White) - Broad: A clear demonstrator fountain pen, featuring a silver-trim, piston-fill mechanism, with cap on and off, revealing the steel nib and ink reservoir.

ECO (White) - Broad

$59.99

TWSBI

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new TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
TWSBI
ECO (Serpentine / Bronze) - Medium
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$105.00
X
TWSBI ECO fountain pen in Serpentine colourway with copper accents, displayed on a natural wooden surface
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ECO (Serpentine / Bronze) - Medium

$105.00

TWSBI

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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
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$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.
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ECO (Espresso / Bronze) - Medium

$95.00

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TWSBI ECO fountain pen in Caffe/Bronze, featuring a extra fine nib, clear barrel, and piston fill mechanism. One pen is capped, the other uncapped, revealing the nib.
TWSBI
ECO (Caffe / Bronze) - Extra Fine
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$95.00
X
TWSBI ECO fountain pen in Caffe/Bronze, featuring a extra fine nib, clear barrel, and piston fill mechanism. One pen is capped, the other uncapped, revealing the nib.
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ECO (Caffe / Bronze) - Extra Fine

$95.00

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

$95.00

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

ECO (Cerulean) - Fine

$59.99

TWSBI

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Diamond 580 ALR (Prussian Blue) - Stub 1.1 fountain pen with transparent barrel and cap, blue metal trim, steel nib, and piston-filling mechanism.
TWSBI
Diamond 580 ALR (Prussian Blue) - Stub 1.1
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$120.00
X
Diamond 580 ALR (Prussian Blue) - Stub 1.1 fountain pen with transparent barrel and cap, blue metal trim, steel nib, and piston-filling mechanism.

Diamond 580 ALR (Prussian Blue) - Stub 1.1

$120.00

TWSBI

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ECO-T (Clear) - Stub 1.1mm fountain pen showcasing a transparent barrel with visible piston filling mechanism and pronounced grip for enhanced writing technique.
TWSBI
ECO-T (Clear) - Stub 1.1mm
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$59.99
X
ECO-T (Clear) - Stub 1.1mm fountain pen showcasing a transparent barrel with visible piston filling mechanism and pronounced grip for enhanced writing technique.
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ECO-T (Clear) - Stub 1.1mm

$59.99

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TWSBI ECO (Transparent Blue) - Broad fountain pen with clear barrel, translucent blue cap and tail, featuring a piston-fill mechanism for visible ink movement.
TWSBI
ECO (Transparent Blue) - Broad
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$59.99
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TWSBI ECO (Transparent Blue) - Broad fountain pen with clear barrel, translucent blue cap and tail, featuring a piston-fill mechanism for visible ink movement.
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ECO (Transparent Blue) - Broad

$59.99

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Diamond 580 ALR (Nickel Gray) - Broad fountain pen, showing clear body with visible piston mechanism, metal nib, and matte aluminum grip with cap on and off.
TWSBI
Diamond 580 ALR (Nickel Gray) - Broad
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$120.00
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Diamond 580 ALR (Nickel Gray) - Broad fountain pen, showing clear body with visible piston mechanism, metal nib, and matte aluminum grip with cap on and off.
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Diamond 580 ALR (Nickel Gray) - Broad

$120.00

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Diamond 580AL (Silver) - Fine fountain pen with a clear body, visible piston-filling mechanism, and metal nib, featuring a detachable cap with a red silicone seal.
TWSBI
Diamond 580AL (Silver) - Fine
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$120.00
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Diamond 580AL (Silver) - Fine fountain pen with a clear body, visible piston-filling mechanism, and metal nib, featuring a detachable cap with a red silicone seal.
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Diamond 580AL (Silver) - Fine

$120.00

TWSBI

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Diamond 580AL (Silver) - Extra Fine fountain pen with clear body, visible piston-filling mechanism, metal nib, and cap featuring a metal clip and red emblem.
TWSBI
Diamond 580AL (Silver) - Extra Fine
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$120.00
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Diamond 580AL (Silver) - Extra Fine fountain pen with clear body, visible piston-filling mechanism, metal nib, and cap featuring a metal clip and red emblem.
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Diamond 580AL (Silver) - Extra Fine

$120.00

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Diamond Mini (Clear) - Stub 1.1 fountain pens, one capped and one uncapped, showcasing internal piston-fill mechanisms and steel nibs, ideal for on-the-go use.
TWSBI
Diamond Mini (Clear) - Stub 1.1
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$98.00
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Diamond Mini (Clear) - Stub 1.1 fountain pens, one capped and one uncapped, showcasing internal piston-fill mechanisms and steel nibs, ideal for on-the-go use.
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Diamond Mini (Clear) - Stub 1.1

$98.00

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TWSBI VAC 700R (Clear) - Stub 1.1 fountain pen with clear barrel, uncapped, showing stainless-steel nib, piston filler, and red finial cap with brand name.
TWSBI
VAC 700R (Clear) - Stub 1.1
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$138.00
X
TWSBI VAC 700R (Clear) - Stub 1.1 fountain pen with clear barrel, uncapped, showing stainless-steel nib, piston filler, and red finial cap with brand name.
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VAC 700R (Clear) - Stub 1.1

$138.00

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TWSBI VAC Mini (Clear) - Stub 1.1 fountain pen with transparent barrel and cap, showcasing a visible ink reservoir and silver-tone nib, ideal for travel.
TWSBI
VAC Mini (Clear) - Stub 1.1
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$110.00
X
TWSBI VAC Mini (Clear) - Stub 1.1 fountain pen with transparent barrel and cap, showcasing a visible ink reservoir and silver-tone nib, ideal for travel.

VAC Mini (Clear) - Stub 1.1

$110.00

TWSBI

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ECO-T (Blue) - Fine: Clear-barrel, piston-filling fountain pen with a bright blue cap and end knob, featuring a stainless nib and TWSBI logo on the cap band.
TWSBI
ECO-T (Blue) - Fine
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$59.99
X
ECO-T (Blue) - Fine: Clear-barrel, piston-filling fountain pen with a bright blue cap and end knob, featuring a stainless nib and TWSBI logo on the cap band.
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ECO-T (Blue) - Fine

$59.99

TWSBI

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