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TWSBI

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. 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 our artist sketch kits. For further help with pen selection, see the TWSBI Top 7 list annotated by our staff. Visit our Blog for tips on pen cleaning and piston servicing.

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TWSBI Eco-T Fountain Pen - Royal Jade/Rose Gold Gift Set with Midnight Blue Ink - Extra Fine Nib

$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI has changed the game!TWSBI Eco-T combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling syste...

View full details
$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI Eco-T Fountain Pen - Royal Jade/Rose Gold Gift Set with Midnight Blue Ink - Fine Nib

$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI has changed the game!TWSBI Eco-T combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling syste...

View full details
$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI Eco-T Fountain Pen - Royal Jade/Rose Gold Gift Set with Midnight Blue Ink - Medium Nib

$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI has changed the game!TWSBI Eco-T combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling syste...

View full details
$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI Eco-T Fountain Pen - Royal Jade/Rose Gold Gift Set with Midnight Blue Ink - Broad Nib

$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI has changed the game!TWSBI Eco-T combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling syste...

View full details
$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI Eco-T Fountain Pen - Royal Jade/Rose Gold Gift Set with Midnight Blue Ink - 1.1mm Italic (Stub) Nib

$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI has changed the game!TWSBI Eco-T combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling syste...

View full details
$128.90 - $128.90
$128.90
$128.90 - $128.90
$128.90

TWSBI Eco Fountain Pen - Serpentine with Bronze Trim and Nib

$115.95 - $115.95
$115.95
$115.95 - $115.95
$115.95

The long awaited restock of the Serpentine with bronze coloured trimmed. This is a mixed resin pour of colours representing the mottled greens and ...

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$115.95 - $115.95
$115.95
$115.95 - $115.95
$115.95

TWSBI Eco Fountain Pen - Carrara with Onyx Trim and Nib

$115.95 - $115.95
$115.95
$115.95 - $115.95
$115.95

The 2025 Limited Edition TWSBI Eco Carrara with onyx coloured trim and nib. Pair with a black notebook and grey ink.  TWSBI Eco combines simplicity...

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$115.95 - $115.95
$115.95
$115.95 - $115.95
$115.95

TWSBI Eco Fountain Pen - Plum with Onyx Trim and Nib

$110.95 - $110.95
$110.95
$110.95 - $110.95
$110.95

This is the new 2025 Limited Edition TWSBI Eco Plum with onyx coloured trim and nib. A sophisticated crimson you can sway depending on whether your...

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$110.95 - $110.95
$110.95
$110.95 - $110.95
$110.95

TWSBI Eco Fountain Pen - Cosmos Blue with Onyx Trim and Nib

$110.95 - $110.95
$110.95
$110.95
$110.95 - $110.95
$110.95

The 2025 Limited Edition TWSBI Eco Cosmos Blue with onyx coloured trim and nib.  Uncapping Cosmos feels like unlocking a mini universe, where every...

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$110.95 - $110.95
$110.95
$110.95
$110.95 - $110.95
$110.95

TWSBI Eco Fountain Pen - Black Marble with Bronze Trim and Nib

$110.95 - $110.95
$110.95
$110.95
$110.95 - $110.95
$110.95

The 2026 Limited Edition TWSBI Eco Black Marble with bronze coloured plated trim and nib. The global release is 6th February, and if you register y...

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$110.95 - $110.95
$110.95
$110.95
$110.95 - $110.95
$110.95

TWSBI Eco Fountain Pen - White with Rose Gold - 1.1mm Italic Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum!TWSBI Eco combines simplicity and elegance in this very conte...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - White with Rose Gold - Broad Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum!TWSBI Eco combines simplicity and elegance in this very conte...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - White with Rose Gold - Medium Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in this very cont...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - White with Rose Gold - Fine Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in this very cont...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - White with Rose Gold - Extra Fine Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in this very cont...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Smoke with Rose Gold - Extra Fine Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum!TWSBI Eco combines simplicity and elegance in this very conte...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Smoke with Rose Gold - Medium Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum!TWSBI Eco combines simplicity and elegance in this very conte...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Smoke with Rose Gold - Broad Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum!TWSBI Eco combines simplicity and elegance in this very conte...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Smoke with Rose Gold - 1.1 Italic (Stub) Nib

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

The long awaited rose gold trimmed TWSBI. Pair with a navy notebook and navy ink. Yum!TWSBI Eco combines simplicity and elegance in this very conte...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Indigo Blue with Bronze - Medium Nib

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

The long awaited brass coloured trimmed TWSBI. Pair with a navy notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in this very...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Indigo Blue with Bronze - Broad Nib

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

The long awaited brass coloured trimmed TWSBI. Pair with a navy notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in this very...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Indigo Blue with Bronze - 1.1mm Italic (stub) Nib

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

The long awaited brass coloured trimmed TWSBI. Pair with a navy notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in this very...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Creme with Rose Gold - Extra Fine Nib

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

TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling system, TWSBI has been able to cre...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Creme with Rose Gold - Medium Nib

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

TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling system, TWSBI has been able to cre...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Creme with Rose Gold - Broad Nib

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

TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling system, TWSBI has been able to cre...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Creme with Rose Gold - 1.1mm Italic (stub) Nib

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

TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-filling system, TWSBI has been able to cre...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Caffe with Bronze - Medium Nib

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

The long awaited bronze coloured trimmed TWSBI. TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a pisto...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Caffe with Bronze - Broad Nib

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

The long awaited bronze coloured trimmed TWSBI. TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a pisto...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Caffe with Bronze - 1.1mm Italic (stub) Nib

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

The long awaited bronze coloured trimmed TWSBI. TWSBI Eco combines simplicity and elegance in this very contemporary fountain pen. By using a pisto...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Irish Green with Onyx - Extra Fine Nib

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

The long awaited TWSBI Irish green coloured coloured Eco with Onyx trim. TWSBI Eco combines simplicity and elegance in this very contemporary fount...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Irish Green with Onyx - Fine Nib

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

The long awaited TWSBI Irish green coloured coloured Eco with Onyx trim. TWSBI Eco combines simplicity and elegance in this very contemporary fount...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Irish Green with Onyx - Medium Nib

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

The long awaited TWSBI Irish green coloured coloured Eco with Onyx trim. TWSBI Eco combines simplicity and elegance in this very contemporary fount...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Irish Green with Onyx - Broad Nib

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

The long awaited TWSBI Irish green coloured coloured Eco with Onyx trim. TWSBI Eco combines simplicity and elegance in this very contemporary fount...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Irish Green with Onyx - 1.1mm Italic (stub) Nib

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

The long awaited TWSBI Irish green coloured coloured Eco with Onyx trim. TWSBI Eco combines simplicity and elegance in this very contemporary fount...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Espresso with Bronze - Extra Fine Nib

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

The long awaited bronze coloured trimmed TWSBI. Pair with a spice brown notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in t...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Espresso with Bronze - Broad Nib

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

The long awaited bronze coloured trimmed TWSBI. Pair with a spice brown notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in t...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95

TWSBI Eco Fountain Pen - Espresso with Bronze - 1.1mm Italic (stub) Nib

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

The long awaited bronze coloured trimmed TWSBI. Pair with a spice brown notebook and navy ink. Yum! TWSBI Eco combines simplicity and elegance in t...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95
Current ink stock is 45mL round bottle

TWSBI Eco Sketch Kit (Clear / Black Fine & DE ATRAMENTIS Document Black 45mL)

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco Clear / Black - Fine & DE ATRAMENTIS Document Urban Sienna 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco-T Sketch Kit - Clear / Mint Blue Fine & DE ATRAMENTIS Document Black 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco-T Fountain Pen - Fine nib (big ink capacity...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco-T Sketch Kit - Clear / Mint Blue - Fine & DE ATRAMENTIS Document Grey 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco-T Fountain Pen - Fine nib (big ink capacity,...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco-T Sketch Kit - Clear / Mint Blue - Fine Nib & DE ATRAMENTIS Document Urban Sienna 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco-T Fountain Pen - Fine nib (big ink capacity,...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco Sketch Kit - Clear / White - Fine Nib & DE ATRAMENTIS Document Black 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco Sketch Kit - Clear / White - Fine Nib & DE ATRAMENTIS Document Urban Sienna 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco Sketch Kit - Clear / White - Fine Nib & DE ATRAMENTIS Document Urban Grey 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco Sketch Kit - Clear / White - Fine Nib & DE ATRAMENTIS Document Brown 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

TWSBI Eco Clear / Black - Fine & DE ATRAMENTIS Document Brown 45mL

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91
Current ink stock is 45mL round bottle

TWSBI Eco Sketch Kit (Clear / Clear Fine Nib & DE ATRAMENTIS Document Black 45mL)

$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

This Sketch Kit contains the optimum fountain pen set-up for heavy duty sketchers. Includes: TWSBI Eco Fountain Pen - Fine nib (big ink capacity, ...

View full details
$104.90
$104.90 - $104.90
$104.90
$95.91
$95.91 - $95.91
$95.91

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