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
Filters
- TWSBI Classic (1)
- TWSBI Converter (2)
- TWSBI Diamond 580 (9)
- TWSBI Diamond 580AL (4)
- TWSBI Diamond 580ALR (8)
- TWSBI Diamond Mini (4)
- TWSBI Eco (36)
- TWSBI Eco-T (6)
- TWSBI Go (3)
- TWSBI Ink (19)
- TWSBI Ink Well (9)
- TWSBI Kai (2)
- TWSBI Nibs & Spares (2)
- TWSBI Pagoda (6)
- TWSBI Precision (10)
- TWSBI Swipe (4)
- TWSBI T-Shirt (1)
- TWSBI Tools (2)
- TWSBI TriTech Multipen (1)
- TWSBI Vac 700R (6)
- TWSBI Vac Mini (3)
TWSBI Obsidian Fountain Pen (Limited Edition) - Mixed black resin with rose gold trim and nib
TWSBI Obsidian Fountain Pen A limited edition piston filler with a darker, more architectural presence than anything in the standard TWSBI line. T...
View full detailsTWSBI Kai Fountain Pen (Limited Edition) - Mixed blue resin with rose gold trim and nib
TWSBI Obsidian Fountain Pen Kai is a limited edition piston filler, that moves away from full transparency and instead uses a blue mixed resin body...
View full detailsTWSBI Diamond 580ALR Fountain Pen Affogato with Onyx
More elegant than playful The TWSBI Diamond 580ALR Affogato combines a creamy coffee-brown demonstrator body with warm bronze trim, creating a foun...
View full detailsTWSBI Diamond 580 Rose Gold II Fountain Pen - Clear/smoke with rose gold trim
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...
View full detailsTWSBI Vac 700R Iris Fountain Pen - Clear with plated aluminium trim
Catch the light every time you use it The TWSBI Vac 700R Iris takes the oversized clear demonstrator body and gives it a completely different energ...
View full detailsTWSBI Vac 700R Kyanite Fountain Pen - Clear with plated aluminium trim
See your machinery at work The TWSBI Vac 700R Kyanite takes the oversized Vac 700R demonstrator and gives it a cooler personality. The blue plated ...
View full detailsTWSBI Diamond 580ALR Caribbean Fountain Pen - Onyx Trim
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...
View full detailsTWSBI Precision Fountain Pen - Gemini Blue
Precision engineering, softened by colour The TWSBI Precision Fountain Pen Gemini Blue takes the industrial confidence of the original Precision se...
View full detailsTWSBI Precision Fountain Pen - Gunmetal
Precision engineering for industrial clarity The TWSBI Precision Fountain Pen is a fully metal, hexagonal bodied writing instrument that feels clos...
View full detailsTWSBI Diamond Mini White Rose Gold II Fountain Pen
A compact demonstrator with softness The TWSBI Diamond Mini White Rose Gold II takes the clarity of the Diamond Mini series and softens it through ...
View full detailsTWSBI Diamond 580 Rose Gold II Fountain Pen - Clear / White with rose gold trim
Clean, warm, and intentionally refined The TWSBI Diamond 580 Rose Gold II White combines a crystal clear demonstrator body with an opaque white cap...
View full detailsTWSBI Diamond 580 Iris Fountain Pen - Clear with plated aluminium trim
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...
View full detailsTWSBI Diamond 580ALR Nickel Grey Fountain Pen - Clear body with Nickel Grey trims
An industrial feel to keep your writing grounded The TWSBI Diamond 580ALR Nickel Grey Fountain Pen is beauty through restraint. Built on the reliab...
View full detailsTWSBI Vac 700R Fountain Pen - Clear with aluminium trim
A vac filler built around ink capacity The TWSBI Vac 700R Clear is for people who enjoy the mechanism as much as the writing. The transparent body ...
View full detailsTWSBI Diamond 580ALR Prussian Blue Fountain Pen - Clear body with Blue trim
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 ...
View full detailsTWSBI Diamond 580ALR Navy Blue Fountain Pen
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...
View full detailsTWSBI Diamond Sketch Kit - Red/Blue Fine & DA Doc Ink
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...
View full detailsTWSBI Eco-T Fountain Pen - Royal Jade/Rose Gold Gift Set with Midnight Blue Ink
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 detailsTWSBI Diamond 580AL Rose Fountain Pen - Clear with silver aluminium trim
A warm rose toned demonstrator The TWSBI Diamond 580AL Rose takes the clean demonstrator platform and introduces a warmer, deeper tone through ros...
View full detailsTWSBI Diamond 580AL Silver Fountain Pen - Clear with silver aluminium trim
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...
View full detailsTWSBI Vac Mini Fountain Pen - Clear
The vac experience, without it being big The TWSBI Vac Mini takes the full vacuum filling system from the Vac 700R and shrinks it into something fa...
View full detailsTWSBI Diamond 580ALR Black Fountain Pen - Clear body with Black trim
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...
View full detailsTWSBI Diamond 580AL Iceberg Fountain Pen - Clear with light blue/silver aluminium trim
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...
View full detailsTWSBI Vac Mini Fountain Pen - Smoke/Clear
A surprisingly capable little vac filler The TWSBI Vac Mini takes the full vacuum filling system from the Vac 700R and shrinks it into something mu...
View full details2-WEEK LOANER: TWSBI 580 Fountain Pen - Fine Nib (includes Regular post and return envelope, no rebate offer)
Find out why TWSBI is changing the game for fountain pens and borrow a TWSBI Diamond 580 Fountain Pen. TWSBI Diamond 580 is a high capacity piston ...
View full details2-WEEK LOANER: TWSBI 580AL Fountain Pen - Fine Nib (includes Regular post and return envelope, no rebate offer)
Find out why TWSBI is changing the game for fountain pens and borrow a TWSBI Diamond 580 Fountain Pen. TWSBI Diamond 580 is a high capacity piston ...
View full detailsTWSBI Diamond Mini AL Silver Fountain Pen - Clear with silver aluminium trim
A compact demonstrator with clean feel The TWSBI Diamond Mini White Rose Gold II takes the clarity of the Diamond Mini series, while adding silver ...
View full detailsTWSBI Eco Fountain Pen - Serpentine with Bronze Trim and Nib
A serpentine green with quiet visual depth The TWSBI Eco Serpentine is a limited edition piston filler with a mixed resin finish inspired by the t...
View full detailsTWSBI Eco Fountain Pen - Carrara with Onyx Trim and Nib
A quieter, stone inspired take on the Eco The TWSBI Eco Carrara with Onyx trim takes inspiration from the veined texture of Carrara marble, transla...
View full detailsTWSBI Eco Fountain Pen - Fluorite Purple with Bronze Trim and Nib
A striking purple-pink with bronze The TWSBI Eco Fluorite Purple with Bronze trim uses a mixed resin finish that combines purple tones with lighter...
View full detailsTWSBI Eco Fountain Pen - Plum with Onyx Trim and Nib
A plum Eco that shifts depending on ink choice The TWSBI Eco Plum is a piston filling fountain pen with a deep crimson body and subtle black trim. ...
View full detailsTWSBI Eco Fountain Pen - Cosmos Blue with Onyx Trim and Nib
A more atmospheric blue demonstrator The TWSBI Eco Cosmos is a piston filling fountain pen with a deep blue finish and black trim. It keeps the sta...
View full detailsTWSBI Eco Fountain Pen - Black Marble with Bronze Trim and Nib
A black and bronze Eco with variation The TWSBI Eco Black Marble with Bronze trim uses a mixed resin finish that combines deep black tones with lig...
View full detailsTWSBI Eco Fountain Pen - Rootbeer with Bronze Trim and Nib
A warm amber Eco with a cola finish The TWSBI Eco Rootbeer with Bronze is a piston filling fountain pen in a warm amber-brown transparent resin, wi...
View full detailsTWSBI Classic Fountain Pen - Sapphire Blue
With TWSBI the game has changed! TWSBI combine simplicity and elegance in the very contemporary Classic fountain pen. By using a piston ink-filling...
View full detailsTWSBI Diamond 580 Fountain Pen - Clear
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...
View full detailsTWSBI Diamond 580RBT Fountain Pen - Red / Blue / Transparent
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...
View full detailsTWSBI Diamond Mini Fountain Pen - Black / Clear
A more grounded Diamond Mini The TWSBI Diamond Mini Black takes the transparent mechanical appeal of the Diamond series and frames it with black ac...
View full detailsTWSBI Diamond Mini Clear Fountain Pen - Clear
The lightest Diamond Mini The TWSBI Diamond Mini Clear takes the transparent mechanical appeal of the Diamond 580 series and makes it fully portabl...
View full detailsTWSBI Eco Fountain Pen - White with Rose Gold
A clean Eco with rose gold trim The TWSBI Eco White with Rose Gold combines a clear demonstrator barrel with an opaque white cap and rose gold trim...
View full detailsTWSBI Eco Fountain Pen - Smoke with Rose Gold
Cool smoke with warm metal The TWSBI Eco Smoke with Rose Gold combines a translucent black resin body with rose gold plated trim. It keeps the stan...
View full detailsTWSBI Eco Fountain Pen - Indigo Blue with Bronze
An Eco with a slightly dressier feel The TWSBI Eco Indigo Blue with Bronze takes the standard Eco demonstrator and gives it a more composed finish....
View full detailsTWSBI Eco Fountain Pen - Creme with Rose Gold
Soft colours with warm trim The TWSBI Eco Creme with Rose Gold is one of the softer looking releases in the Eco range. The warm creme cap and pisto...
View full detailsTWSBI Eco Fountain Pen - Caffe with Bronze
Warm, familiar and easy to keep using The TWSBI Eco Caffe sits in that rich coffee-brown zone that feels warm without becoming dark or heavy. The b...
View full detailsTWSBI Eco Fountain Pen - Irish Green with Onyx
A deeper green that feels capable The TWSBI Eco Irish Green takes the reliable Eco platform and shifts the mood completely. The darker green resin ...
View full detailsTWSBI Eco Fountain Pen - Espresso with Bronze
Coffee brown for everyday writing The TWSBI Eco Espresso with Bronze trim is a piston filling fountain pen in a warm brown resin with bronze accent...
View full detailsTWSBI Eco Fountain Pen - Slate Blue with Onyx
A muted blue Eco with Onyx accents The TWSBI Eco Slate Blue is a limited edition piston filling fountain pen in a muted blue-grey resin. Depending ...
View full detailsTWSBI Eco Sketch Kit - Black Fine & DA Doc Ink
Draw anywhere. Notice more. A simple portable sketching setup for capturing what’s around you, wherever you happen to be. Who this is for You want...
View full details