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TWSBI

TWSBI

Affordable piston-filling fountains

TWSBI fountain pens (TaShin Precision, Taiwan) are known for piston-filling mechanisms, ink capacity and transparent designs. The pens feature German-made nibs, which perform well straight out of the box. The Diamond 580 serves as the everyday writer, equipped with a screw-off nib unit for easy nib size changes and compatiblility 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 Kai Fountain Pen (Limited Edition) - Mixed blue resin with rose gold trim and nib - Extra Fine nib

$217.95
$217.95 - $217.95
$217.95
$179.00
$179.00 - $179.00
$179.00

Limited edition piston filler with navy blue resin and rose gold plated details. Available in EF, F, M and B nib that looks similar in design to th...

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$217.95
$217.95 - $217.95
$217.95
$179.00
$179.00 - $179.00
$179.00
Save 18% Save %

TWSBI Precision Fountain Pen - Gemini Blue - Extra Fine Nib

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

TWSBI has changed the game! The TWSBI Precision combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-fill...

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

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

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

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

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

TWSBI Precision Fountain Pen - Gunmetal - Extra Fine Nib

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

TWSBI has changed the game! The TWSBI Precision combines simplicity and elegance in this very contemporary fountain pen. By using a piston ink-fill...

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$159.95 - $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 - Extra Fine Nib

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

With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

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

TWSBI Diamond Mini White Rose Gold II Fountain Pen - Extra Fine Nib

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

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Diamond Mini Clear fountain pen. By using a piston ...

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$149.95 - $149.95
$149.95
$149.95 - $149.95
$149.95
TWSBI Vac 700R Fountain Pen - Clear with aluminium trim - Extra Fine Nib

TWSBI Vac 700R Fountain Pen - Clear with aluminium trim - Extra Fine Nib

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

With TWSBI the game has changed!Simply pull up, push down and your ink is filled, ready to go.Vacuum filler type fountain pen designed with a ink s...

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$139.95 - $139.95
$139.95
$139.95 - $139.95
$139.95
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 - Extra Fine Nib

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

With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

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

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

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

With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

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

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

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

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...

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

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

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

With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

View full details
$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95

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

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

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

View full details
$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95
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 - Extra Fine Nib

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

With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

View full details
$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95
TWSBI Vac Mini Fountain Pen - Clear

TWSBI Vac Mini Fountain Pen - Clear - Extra Fine Nib

$119.95 - $119.95
$119.95
$119.95 - $119.95
$119.95

With TWSBI the game has changed!Simply pull up, push down and your ink is filled, ready to go.Vacuum filler type fountain pen designed with a ink s...

View full details
$119.95 - $119.95
$119.95
$119.95 - $119.95
$119.95
TWSBI Diamond Mini AL Silver Fountain Pen - Clear with silver aluminium trim - Extra Fine Nib

TWSBI Diamond Mini AL Silver Fountain Pen - Clear with silver aluminium trim - Extra Fine Nib

$119.95 - $119.95
$119.95
$119.95 - $119.95
$119.95

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Diamond Mini Clear fountain pen. By using a piston ...

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$119.95 - $119.95
$119.95
$119.95 - $119.95
$119.95

TWSBI Eco Fountain Pen - Slate Blue with Onyx - Extra Fine Nib

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

Limited edition TWSBI Slate Blue coloured coloured Eco with Onyx trim, launching 28 March 2025. TWSBI Eco combines simplicity and elegance in this ...

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$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...

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

TWSBI Eco Fountain Pen - Caffe with Bronze - Extra Fine 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...

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$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 - 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...

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$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95
TWSBI Diamond Mini Clear Fountain Pen

TWSBI Diamond Mini Clear Fountain Pen - Clear - Extra Fine Nib

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

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Diamond Mini Clear fountain pen. By using a piston ...

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$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95
TWSBI Diamond Mini Classic Fountain Pen - Black / Clear

TWSBI Diamond Mini Classic Fountain Pen - Black / Clear - Extra Fine Nib

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

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Diamond Mini Classic fountain pen. By using a pisto...

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$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 / Clear / Blue - Extra Fine Nib

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

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95
TWSBI Classic Fountain Pen - Sapphire Blue

TWSBI Classic Fountain Pen - Sapphire Blue - Extra Fine Nib

$94.95 - $94.95
$94.95
$94.95 - $94.95
$94.95

With TWSBI the game has changed!TWSBI combine simplicity and elegance in the very contemporary Classic fountain pen. By using a piston ink-filling...

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$94.95 - $94.95
$94.95
$94.95 - $94.95
$94.95

TWSBI Eco Fountain Pen - Sky Blue - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

TWSBI Eco-T Fountain Pen - Eggplant - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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

View full details
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

TWSBI Eco Fountain Pen - Heat - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

TWSBI Eco Fountain Pen - Persian Green - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

TWSBI Eco-T Fountain Pen - Saffron - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

TWSBI Eco Fountain Pen - Cerulean Blue - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

TWSBI Eco Fountain Pen - Glow Green - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95
TWSBI Eco Fountain Pen - Clear / Transparent Purple

TWSBI Eco Fountain Pen - Clear / Transparent Yellow - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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

View full details
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

TWSBI Eco-T Fountain Pen - Mint Blue - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95
TWSBI Eco Fountain Pen - Clear / Transparent Purple
TWSBI Eco Fountain Pen - Clear / Transparent Purple

TWSBI Eco Fountain Pen - Clear / Transparent Purple - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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

View full details
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95
TWSBI Eco Fountain Pen - Clear / Transparent Blue

TWSBI Eco Fountain Pen - Clear / Transparent Blue - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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

View full details
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95
TWSBI Eco Fountain Pen - Clear / Clear

TWSBI Eco Fountain Pen - Clear / Clear - Extra Fine Nib

$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95

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

View full details
$59.95 - $59.95
$59.95
$59.95
$59.95 - $59.95
$59.95
TWSBI Vac 700R Iris Replacement Nib

TWSBI Diamond 580 Iris Replacement Nib - Extra Fine

$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95

Replacement nib for TWSBI 580 Iris fountain pen. This replacement nib has the same iridescent colouring as the original IRIS pens. To change the ni...

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$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95

TWSBI Swipe Fountain Pen - Spring Loaded Converter - Salmon Colour - Extra Fine Nib

$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95

The TWSBI SWIPE is a traditional cartridge, converter type fountain pen. The pen is packaged with a spring converter and a single cartridge. The hi...

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$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95

TWSBI Swipe Fountain Pen - Spring Loaded Converter - Smoke Colour - Extra Fine Nib

$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95

The TWSBI SWIPE is a traditional cartridge, converter type fountain pen. The pen is packaged with a spring converter and a single cartridge. The hi...

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$49.95 - $49.95
$49.95
$49.95 - $49.95
$49.95

TWSBI Eco Onyx Replacement Nib (Nib Only) - Extra Fine

$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

Replacement nib TWSBI Mini or Eco Onyx pens. Sold as nib only without the feed or grip section.

$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95
TWSBI GO Fountain Pen - Spring Load Mechanism - Sapphire Blue Colour
TWSBI GO Fountain Pen - Spring Load Mechanism - Sapphire Blue Colour

TWSBI GO Fountain Pen - Spring Load Mechanism - Sapphire Blue Colour - 1.1 Italic (stub) Nib

$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

With TWSBI the game has changed!The TWSBI GO is the latest innovation in fountain pens. New model, new mechanism, new simplicity, new priceSimple c...

View full details
$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

TWSBI Go Fountain Pen - Spring Load Mechanism - Clear - Extra Fine Nib

$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

With TWSBI the game has changed!The TWSBI GO is the latest innovation in fountain pens. New model, new mechanism, new simplicity, new priceSimple c...

View full details
$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95
TWSBI GO Fountain Pen - Spring Load Mechanism - Smoke Colour
TWSBI GO Fountain Pen - Spring Load Mechanism - Smoke Colour

TWSBI Go Fountain Pen - Spring Load Mechanism - Smoke Colour - Extra Fine Nib

$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

With TWSBI the game has changed!The TWSBI GO is the latest innovation in fountain pens. New model, new mechanism, new simplicity, new priceSimple c...

View full details
$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95
TWSBI GO Fountain Pen - Spring Load Mechanism - Sapphire Blue Colour
TWSBI GO Fountain Pen - Spring Load Mechanism - Sapphire Blue Colour

TWSBI Go Fountain Pen - Spring Load Mechanism - Sapphire Blue Colour - Extra Fine Nib

$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

With TWSBI the game has changed!The TWSBI GO is the latest innovation in fountain pens. New model, new mechanism, new simplicity, new priceSimple c...

View full details
$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95
Sold out

TWSBI Diamond 580ALR Caribbean Fountain Pen - Onyx plated - Extra Fine Nib

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

With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

View full details
$159.95 - $159.95
$159.95
$159.95 - $159.95
$159.95
Sold out
Sold out

TWSBI Diamond 580ALR Navy Blue Fountain Pen - Clear body with Blue trim - Extra Fine Nib

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

With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Diamond 580 fountain pen. By using a piston ink-fil...

View full details
$129.95 - $129.95
$129.95
$129.95
$129.95 - $129.95
$129.95
Sold out
TWSBI Vac Mini Fountain Pen - Clear
Sold out

TWSBI Vac Mini Fountain Pen - Smoke/Clear - Extra Fine Nib

$119.95 - $119.95
$119.95
$119.95 - $119.95
$119.95

With TWSBI the game has changed! Simply pull up, push down and your ink is filled, ready to go. Vacuum filler type fountain pen designed with a ink...

View full details
$119.95 - $119.95
$119.95
$119.95 - $119.95
$119.95
Sold out
Sold out

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 Serpentine with bronze coloured trimmed TWSBI. Pair with a spice brown notebook and navy ink. Yum! TWSBI Eco combines simplicity a...

View full details
$115.95 - $115.95
$115.95
$115.95 - $115.95
$115.95
Sold out

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