Skip to content
2026 MIDORI Hibino has landed. Check it out here...
2026 MIDORI Hibino has landed. Check it out here...
Home Blog Contact About Us Services Gift Cards
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.

Filters

$
$
Save 18% Save %

TWSBI Kai Fountain Pen (Limited Edition) - Mixed blue resin with rose gold trim and nib - Broad 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...

View full details
$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 - Broad 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...

View full details
$159.95 - $159.95
$159.95
$159.95
$159.95 - $159.95
$159.95

TWSBI Diamond 580ALR Caribbean Fountain Pen - Onyx plated Broad 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

TWSBI Vac 700R Iris Fountain Pen - Clear with plated aluminium trim - Broad Nib

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

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

TWSBI Precision Fountain Pen - Gunmetal - Broad 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-filli...

View full details
$159.95 - $159.95
$159.95
$159.95
$159.95 - $159.95
$159.95

TWSBI Diamond Mini White Rose Gold II Fountain Pen - Broad 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 ...

View full details
$149.95 - $149.95
$149.95
$149.95 - $149.95
$149.95
TWSBI Vac 700R Fountain Pen - Clear with aluminium trim - Broad Nib

TWSBI Vac 700R Fountain Pen - Clear with aluminium trim - Broad 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...

View full details
$139.95 - $139.95
$139.95
$139.95 - $139.95
$139.95

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

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

TWSBI Diamond 580ALR Black Fountain Pen - Clear body with Black trim - Broad 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 580ALR Sunset Yellow Fountain Pen - Clear body with Yellow trim - Broad 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 Eco-T Fountain Pen - Royal Jade/Rose Gold Gift Set with Midnight Blue Ink - Broad 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...

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

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

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 580ALR Prussian Blue Fountain Pen - Clear body with Blue trim - Broad 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 Silver Fountain Pen - Clear with silver aluminium trim

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

TWSBI Diamond 580ALR Nickel Grey Fountain Pen - Clear body with Nickel Grey trims - Broad 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 - Smoke/Clear - Broad 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
TWSBI Vac Mini Fountain Pen - Clear

TWSBI Vac Mini Fountain Pen - Clear - Broad 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

TWSBI Diamond Mini AL Silver Fountain Pen - Clear with silver aluminium trim - Broad 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 ...

View full details
$119.95 - $119.95
$119.95
$119.95 - $119.95
$119.95

TWSBI Eco Fountain Pen - Slate Blue with Onyx - Broad 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 ...

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 - 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 - 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 - 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 - 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 - 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 - 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 Diamond Mini Clear Fountain Pen

TWSBI Diamond Mini Clear Fountain Pen - Clear - Broad 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 ...

View full details
$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 - Broad Nib

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

TWSBI combine simplicity and elegance in the very contemporary Diamond Mini Classic fountain pen. By using a piston ink-filling system, TWSBI has ...

View full details
$109.95 - $109.95
$109.95
$109.95 - $109.95
$109.95
TWSBI Diamond 580 Fountain Pen - Red / Clear / Blue
TWSBI Diamond 580 Fountain Pen - Red / Clear / Blue

TWSBI Diamond 580RBT Fountain Pen - Red / Clear / Blue - Broad 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 Eco Fountain Pen - Amazonite - Broad Nib

$69.95 - $69.95
$69.95
$69.95
$69.95 - $69.95
$69.95

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
$69.95 - $69.95
$69.95
$69.95
$69.95 - $69.95
$69.95

TWSBI Diamond 580 Rose Gold Replacement Nib (Nib Only) - Broad

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

To replace your Diamond 580 nib, unscrew the original nib unit from the pen. If you are only replacing the metal nib part, slide the old nib out an...

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

TWSBI Eco Fountain Pen - Sky Blue - Broad 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 - Broad 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 - Dark Sapphire - Broad 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 - Heat - Broad 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 - Broad 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 - Glow Purple - Broad 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 - Cerulean Blue - Broad 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 - Broad 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 - Broad 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 - Broad 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 - Clear

TWSBI Eco-T Fountain Pen - Clear - Broad 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 / White

TWSBI Eco Fountain Pen - Clear / White - Broad 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 - Broad 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 - Broad 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 / Black

TWSBI Eco Fountain Pen - Clear / Black - Broad 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

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare