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TWSBI

Watch your ink come alive

TWSBI fountain pens are known for modern piston-filling mechanisms, ink capacity and transparent designs. Fitted with German made nibs, they perform well straight out of the box. The Diamond 580 is the everyday writer, with a screw-off nib unit for easy nib changes and compatibility with the Diamond Inkwell. The Eco offers a simplified design with a friction fit nib and feed, but also options with plated trimmings. Lesser known models include vacuum fillers with an ink shut-off valve for travel and the Swipe offering the convenience of standard cartridges or a spring converter. Good value range of soluble fountain pen inks supplied in frosted glass bottles. TWSBI pens are high flow, making them the ideal choice for shimmer inks and our artist sketch kits. For further help with pen selection, see the TWSBI Top 7 pens annotated by our staff. Visit our Blog for tips on pen cleaning and piston servicing.

Shop the refreshing TWSBI 'drinks' range

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TWSBI Diamond 580ALR Fountain Pen Affogato with Onyx

$169.95 - $169.95
$169.95
$169.95 - $169.95
$169.95

More elegant than playful The TWSBI Diamond 580ALR Affogato combines a creamy coffee-brown demonstrator body with warm bronze trim, creating a foun...

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$169.95 - $169.95
$169.95
$169.95 - $169.95
$169.95

TWSBI Diamond 580 Rose Gold II Fountain Pen - Clear/smoke with rose gold trim

$159.95 - $159.95
$159.95
$159.95
$159.95 - $159.95
$159.95

Turn everyday writing into a ritual The TWSBI Diamond 580 Rose Gold II combines translucent smoke resin with warm rose gold trim, creating a demons...

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$159.95 - $159.95
$159.95
$159.95
$159.95 - $159.95
$159.95

TWSBI Diamond 580ALR Caribbean Fountain Pen - Onyx Trim

$159.95 - $159.95
$159.95
$159.95 - $159.95
$159.95

Dive deeper into your thinking The TWSBI Diamond 580ALR Caribbean with Onyx trim combines a vibrant teal-blue body with dark black accents that shi...

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$159.95 - $159.95
$159.95
$159.95 - $159.95
$159.95

TWSBI Diamond 580 Rose Gold II Fountain Pen - Clear / White with rose gold trim

$149.95 - $149.95
$149.95
$149.95
$149.95 - $149.95
$149.95

Clean, warm, and intentionally refined The TWSBI Diamond 580 Rose Gold II White combines a crystal clear demonstrator body with an opaque white cap...

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$149.95 - $149.95
$149.95
$149.95
$149.95 - $149.95
$149.95

TWSBI Diamond 580 Iris Fountain Pen - Clear with plated aluminium trim

$149.95 - $149.95
$149.95
$149.95
$149.95 - $149.95
$149.95

Catching the light at the right angle The TWSBI Diamond 580 Iris Fountain Pen is a full size pen that uses an iridescent trim to catch the light an...

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$149.95 - $149.95
$149.95
$149.95
$149.95 - $149.95
$149.95
TWSBI Diamond 580AL R Nickel Grey Fountain Pen - Clear body with Nickel Grey trims - Extra Fine Nib

TWSBI Diamond 580ALR Nickel Grey Fountain Pen - Clear body with Nickel Grey trims

$139.95 - $139.95
$139.95
$139.95
$139.95 - $139.95
$139.95

An industrial feel to keep your writing grounded The TWSBI Diamond 580ALR Nickel Grey Fountain Pen is beauty through restraint. Built on the reliab...

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$139.95 - $139.95
$139.95
$139.95
$139.95 - $139.95
$139.95

TWSBI Diamond 580ALR Prussian Blue Fountain Pen - Clear body with Blue trim

$139.95 - $139.95
$139.95
$139.95
$139.95 - $139.95
$139.95

A calm, confident Prussian blue  The TWSBI Diamond 580 Prussian Blue Fountain Pen is built on TWSBI's proven 580ALR model, with deep Prussian blue ...

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$139.95 - $139.95
$139.95
$139.95
$139.95 - $139.95
$139.95

TWSBI Diamond 580ALR Navy Blue Fountain Pen

$139.95 - $139.95
$139.95
$139.95
$139.95 - $139.95
$139.95

A deep navy colour for a controlled feel The TWSBI Diamond 580ALR Navy Blue takes the proven 580 model and adds a darker, more restrained tone, wit...

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$139.95 - $139.95
$139.95
$139.95
$139.95 - $139.95
$139.95
TWSBI Diamond 580 Fountain Pen - Red / Clear / Blue

TWSBI Diamond Sketch Kit - Red/Blue Fine & DA Doc Ink

$159.00
$159.00 - $159.00
$159.00
$139.00
$139.00 - $139.00
$139.00

Draw anywhere. Notice more. A portable sketching setup built around the TWSBI Diamond 580, a modern fountain pen that’s suited to both sketching an...

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$159.00
$159.00 - $159.00
$159.00
$139.00
$139.00 - $139.00
$139.00

TWSBI Diamond 580AL Rose Fountain Pen - Clear with silver aluminium trim

$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95

A warm rose toned demonstrator  The TWSBI Diamond 580AL Rose takes the clean demonstrator platform and introduces a warmer, deeper tone through ros...

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$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95
TWSBI Diamond 580AL Silver Fountain Pen - Clear with silver aluminium trim - EF Nib

TWSBI Diamond 580AL Silver Fountain Pen - Clear with silver aluminium trim

$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95

A pure demonstrator with clean silver accents The TWSBI Diamond 580AL Silver strips the design back to show you all the inner workings. The crystal...

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$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95

TWSBI Diamond 580ALR Black Fountain Pen - Clear body with Black trim

$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95

Clarity with a sharper edge The TWSBI Diamond 580ALR Black Fountain Pen takes everything people love about the Diamond 580 and strips it down to it...

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$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95
TWSBI Diamond 580AL Silver Fountain Pen - Clear with silver aluminium trim - EF Nib

TWSBI Diamond 580AL Iceberg Fountain Pen - Clear with light blue/silver aluminium trim

$129.95 - $129.95
$129.95
$129.95 - $129.95
$129.95

A cool, clean, precise demonstrator The TWSBI Diamond 580AL Iceberg takes the clarity of a full demonstrator and sharpens it with light blue and si...

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$129.95 - $129.95
$129.95
$129.95 - $129.95
$129.95
TWSBI Diamond 580 Fountain Pen - Clear - EF Nib

TWSBI Diamond 580 Fountain Pen - Clear

$109.95 - $109.95
$109.95
$109.95
$109.95 - $109.95
$109.95

Makes the act of writing visible The TWSBI Diamond 580 Clear is a traditional piston filler stripped back to show you everything inside the pen. Se...

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$109.95 - $109.95
$109.95
$109.95
$109.95 - $109.95
$109.95
TWSBI Diamond 580 Fountain Pen - Red / Clear / Blue (limited edition)
TWSBI Diamond 580 Fountain Pen - Red / Clear / Blue (limited edition)

TWSBI Diamond 580RBT Fountain Pen - Red / Blue / Transparent

$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

The lightest of the Diamond 580 pens The TWSBI Diamond 580 is the original expression of the Diamond series, built around a traditional piston fill...

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$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95
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TWSBI Diamond 580ALR Punch Pink Fountain Pen - Clear body with Pink trim - Broad Nib

$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95

A bright pulse for confident writing The TWSBI Diamond 580ALR Punch Pink Fountain Pen takes the trusted 580 platform and moves it into a more expre...

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$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95
Sold out
Sold out

TWSBI Diamond 580ALR Sunset Yellow Fountain Pen - Clear body with Yellow trim - 1.1mm Italic (stub) Nib

$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95

A warm burst of colour  The TWSBI Diamond 580ALR Sunset Yellow Fountain Pen brings a bright, optimistic tone to the trusted 580 platform. A crystal...

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$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95
Sold out

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