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The Twsbi Eco Serpentine & Bronze fountain pen is part of the renowned Eco collection. Discover the perfect balance of style, value, and function with the TWSBI Eco Serpentine with Bronze Fountain Pen. Featuring a striking green and orange swirled “Serpentine” acrylic resin body accented by warm bronze trims, this special edition Eco combines eye-catching design with the quality craftsmanship TWSBI is known for. Built with a transparent barrel, the Eco Serpentine allows users to see the piston filling system in action providing a clear view of the ink level and creating a dynamic visual experience that changes with every ink color you use. The bold faceted cap and polished stainless steel nib engraved with the TWSBI logo further elevate the pen’s sleek, modern appeal. Ideal for both beginners and seasoned writers, the Eco’s piston-fill mechanism offers generous ink capacity and a smooth, consistent writing experience. Choose from a variety of nib sizes to suit your writing style.
With a history of more than 40 years of manufacturing, including producing high-end pens for other brands, Ta Shin Precision decided to start selling under their own brand, TWSBI. The name TWSBI is made up from TWS and BI. ‘TWS’ is the reversed initials of the phrase ‘San Wen Tong’, translated Hall of Three Cultures, and ‘BI’ literally means writing instrument.
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| Condition | New |
| Brand | Twsbi |
| Brand Origin | Taiwan |
| Product Code | M7442060, M7442070, M7442080, M7442090, M7442100 |
| Type | Fountain Pen |
| Brand Colour | Serpentine Bronze |
| Colour | Green |
| Body Material | Acrylic |
| Mechanism | Cap on / Cap Off |
| Cap Type | Screw Cap |
| Compatible Converter | Bottle Fill Only |
| Filling Mechanism | Piston Filler |
| Grip Material | Acrylic |
| Nib Size | Extra Fine, Fine, Medium, Broad, STUB 1.1mm |
| Nib Colour | Bronze |
| Nib Material | Steel |
| Postable | Yes |
| Trim | Bronze Plated |
| Diameter (MM) | 12.8 |
| Length - Closed (MM) | 139 |
| Weight (gms) | 21 |
| Warranty Info | 2 Year warranty Valid against manufacturing defect only |
| Package Content | 1 Fountain pen includes a wrench and silicon grease with nice twsbi gift box |
In my collection, this is a second pen I have purchased and i think it is one of the best pen rather other costlier ones..
Also th flow of ink and smoothness of the click nibs are awesome..
BEST WISHES !
It’s a nice pen with butter smooth wet nib over all a bit large pen but verz comfortable in my hand grip is also very ergonomic for long writing
Diplomat Traveller Black Lacquer Gold Fountain Pen
I used it on Pelican highlighter edition pen. Impressed with its butter smooth writing. It's module is easy to assemble. Very happy!!
Very good.
The steel nib of diplomat can compete with some of the best high end gold nib fountain pens in the market. Its ultra smooth. Try medium or broad nibs.
Fill it up with a wet ink like Pilot Iroshizuku and the effect is spectacular
One of the best colors in the current Iroshizuku ink lineup. A modern classic dark brown with purple undertones. Was packed and shipped well.
Leuchtturm1917 Drehgriffel Nr. 1 Gradient Navy/Mint Green Ballpoint Pen 372936 (Limited Edition)
The pen is very smooth and gentle. I am loving it.
Sailor 1911 Fude De Mannen Blue GT Fountain Pen [****]
Verity nice pen. Feels nice to hold. Good finish and quality. In fact I found it bethe than platinum plaisir. I hope click confessed out worthy similar such models
The pens i received from onlinemantra were scratch free & strong built
I received my delivery just the next day after ordering, and it was amazing to see that the pen was shipped out the same day, just a few hours after I placed the order! I received the pen in absolute perfect condition. The packaging was very secure, and I filled the Sailor Tuzu with Noodler's Baystate Blue Ink. Since I actually had purchased this pen particularly for that ink, the flow, the consistency, and the way the pen writes is just incredible. I also love the adjustable way in which you hold the pen, which makes it very easy to write with. You can write pages after pages and not get fatigued by it. It's an amazing utilitarian pen that everyone needs to have, and it is not too expensive, but the internals, the quality, is no less than a luxury pen.
A cartridge converter pen at a decent price.The nib from Bock is very smooth and wet. Gives a pleasant writing experience.


