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) - 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
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$92.00
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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.
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Diamond Mini (Clear) - Medium

$92.00

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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
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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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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
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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.
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VAC 700R (Kyanite) - Medium

$150.00

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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.
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 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
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$109.00
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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

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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
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$155.00
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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

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TWSBI SWIPE (Salmon) - Medium fountain pen set, featuring two coral-orange pens with silver accents, one uncapped showing its nib and transparent section.
TWSBI
SWIPE (Salmon) - Medium
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$43.50
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TWSBI SWIPE (Salmon) - Medium fountain pen set, featuring two coral-orange pens with silver accents, one uncapped showing its nib and transparent section.
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SWIPE (Salmon) - Medium

$43.50

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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) - Medium
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$59.99
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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.
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ECO (Sky Blue) - Medium

$59.99

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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) - Medium
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$59.99
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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.
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ECO-T (Eggplant) - Medium

$59.99

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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
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$120.00
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TWSBI Diamond 580 ALR (Iceberg) fountain pen, extra fine nib, clear with light blue accents, showcasing piston-fill mechanism and transparent body.
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Diamond 580 ALR (Iceberg) - Medium

$120.00

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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
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$120.00
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TWSBI Diamond 580ALR (Black) - medium 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) - Medium

$120.00

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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
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$120.00
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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

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TWSBI Diamond 580 ALR (Punch Pink) - Medium Fountain Pen
TWSBI
Diamond 580 ALR (Punch Pink) - Medium
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$120.00
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TWSBI Diamond 580 ALR (Punch Pink) - Medium Fountain Pen
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Diamond 580 ALR (Punch Pink) - Medium

$120.00

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Diamond 580AL (Silver) - Medium fountain pen, uncapped, showcasing transparent barrel, steel nib, piston mechanism, and silver trim, with a clear cap featuring a metal clip.
TWSBI
Diamond 580AL (Silver) - Medium
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$120.00
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Diamond 580AL (Silver) - Medium fountain pen, uncapped, showcasing transparent barrel, steel nib, piston mechanism, and silver trim, with a clear cap featuring a metal clip.
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Diamond 580AL (Silver) - Medium

$120.00

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VAC Mini (Smoke) - Medium fountain pen with clear barrel, silver nib, black feed, and transparent cap featuring a metal clip and colored logo.
TWSBI
VAC Mini (Smoke) - Medium
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$110.00
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VAC Mini (Smoke) - Medium fountain pen with clear barrel, silver nib, black feed, and transparent cap featuring a metal clip and colored logo.
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VAC Mini (Smoke) - Medium

$110.00

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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) - Medium
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$155.00
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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) - Medium

$155.00

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new TWSBI Precision (Gemini Blue) fountain pen with extra fine nib, featuring a faceted barrel, chrome trim, ink-view window, and piston filling mechanism.
TWSBI
Precision (Gemini Blue) - Medium
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$159.00
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TWSBI Precision (Gemini Blue) fountain pen with extra fine nib, featuring a faceted barrel, chrome trim, ink-view window, and piston filling mechanism.
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Precision (Gemini Blue) - Medium

$159.00

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TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine fountain pen, featuring a clear body with visible piston mechanism, shown in uncapped and capped positions.
TWSBI
Diamond 580 ALR (Caribbean with Onyx) - Medium
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$155.00
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TWSBI Diamond 580 ALR (Caribbean with Onyx) - Extra Fine fountain pen, featuring a clear body with visible piston mechanism, shown in uncapped and capped positions.

Diamond 580 ALR (Caribbean with Onyx) - Medium

$155.00

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

$235.00

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TWSBI SWIPE (Blue Ice) Medium fountain pen, shown capped and with nib exposed, featuring a cartridge/converter system and stainless steel nib in a to-go box.
TWSBI
SWIPE (Blue Ice) - Medium
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$43.50
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TWSBI SWIPE (Blue Ice) Medium fountain pen, shown capped and with nib exposed, featuring a cartridge/converter system and stainless steel nib in a to-go box.
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SWIPE (Blue Ice) - Medium

$43.50

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TWSBI ECO (Transparent Yellow) fountain pen, medium nib, shown capped and uncapped, highlighting its piston fill mechanism and steel nib. Ideal for beginners and enthusiasts.
TWSBI
ECO (Transparent Yellow) - Medium
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$59.99
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TWSBI ECO (Transparent Yellow) fountain pen, medium nib, shown capped and uncapped, highlighting its piston fill mechanism and steel nib. Ideal for beginners and enthusiasts.
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ECO (Transparent Yellow) - Medium

$59.99

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TWSBI VAC 700 Nib Set - Medium Accessories
TWSBI
VAC 700 Nib Set - Medium
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$38.95
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TWSBI VAC 700 Nib Set - Medium Accessories

VAC 700 Nib Set - Medium

$38.95

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TWSBI VAC 700R Nib Set - Medium Accessories
TWSBI
VAC 700R Nib Set - Medium
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$38.95
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TWSBI VAC 700R Nib Set - Medium Accessories

VAC 700R Nib Set - Medium

$38.95

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TWSBI Diamond Mini AL (Silver) - Medium Fountain Pen
TWSBI
Diamond Mini AL (Silver) - Medium
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$109.00
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TWSBI Diamond Mini AL (Silver) - Medium Fountain Pen

Diamond Mini AL (Silver) - Medium

$109.00

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