TWSBI ECO Fountain Pen - Black - The Goulet Pen Company
TWSBI ECO Fountain Pen - Black
TWSBI's belief is that it is important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. These pens also come packaged with a wrench and silicone grease. Neither of these accessories are intended to be used immediately, as they are for long-term care and maintenance. Additionally, please use extra care if you choose to disassemble the nib and feed, as the feed is very fragile.
- Condition
- New
- Brand
- TWSBI
- Type
- Fountain Pens
- Color
- Black, Clear
- Demonstrator
Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.
- Yes
- Body Material
- Resin
- Cap Rotations
For pens with a screw-cap closure, how many rotations it takes to uncap/recap the pen.
- 1
- Cap Type
How the cap is opened/closed from the barrel of the pen. Some common options include Snap-Cap, Screw-Cap, Magnetic Cap, or Capless (no cap).
- Screw-cap
- Compatible inks & refills
Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.
- Bottled ink
- Filling Mechanism
How the pen fills with ink. Click here to watch our video tutorial on common filling mechanisms.
- Piston
- Grip Material
- Resin
- Nib Size
- Extra-Fine, Fine, Medium, Broad, 1.1mm Stub
- Nib Color
- Silver
- Nib Material
- Steel
- Postable
Whether or not the cap fits securely onto the back of the barrel when open.
- Yes
- Retractable
Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).
- No
- Trim
- Silver
- Diameter - Body
- 12.8mm (0.50in)
- Diameter - Cap (without clip)
- 14.9mm (0.59in)
- Diameter - Cap (with clip)
- 17.3mm (0.68in)
- Diameter - Grip (mm)
Measured from the place most people choose to rest their fingers, which varies with each pen.
- 9.1mm
- Length - Body
The measurement from the back end of the barrel to the tip of the nib.
- 131.6mm (5.18in)
- Length - Cap
- 60.4mm (2.38in)
- Length - Nib
The measured length of the visible portion of the nib when it is installed in the pen, from grip to tip.
- 18.5mm (0.73in)
- Length - Overall (Closed)
- 138.8mm (5.46in)
- Length - Overall (Posted)
When the cap of the pen is posted onto the back of the pen body, this is the measurement of the entire pen including the nib.
- 167.5mm (6.59in)
- Weight - Body
If a converter is included with the pen, this weight is reflected in the total.
- 13g (0.46oz)
- Weight - Cap
- 8g (0.28oz)
- Weight - Overall (g)
- 21.0g
- Max Ink Capacity - Piston Vac
The maximum volume of ink that can fit in the pen when using the built-in piston or vacuum filling mechanism.
- 1.76ml
Probably the best value on the market (and I own thousands of dollars' worth of pens including such oddities like the Mont Blanc Edgar Allan Poe, etc, which are sitting here, locked up and never used besides one dip).
The folks at TWSBI have hit a home run with this medium nib on my latest purchase. I have two of these babies. Superb pen, hands down. I highly recommend, call now, operators are on duty.
This pen is amazing! Especially for someone just getting into pens. It was really easy and fun to take apart, though I had a bit of trouble when I took accidentally took the cap off of the piston rod... was not supposed to do that.
I figured it out though with the help of YouTube and got it back working in no time! Would recommend to anyone, just be mindful when taking it apart.
Love it! I tried fine and broad from another seller. Fine was a bit scratchy and broad was too polished. I decided to buy the medium from goulet instead and I am in love! My perfect pen. Perfect line weight
Wet writer. I don't like shading so this was perfect for my black inks
This is my first fountain pen made outside of India. I've been using fountain pens since 2005, all through school and college so I have quite an experience with affordable pens. That said, this is one of the smoothest out of box nibs I have ever written with. It has a large capacity, and with the fine nib, one fill lasts me about 20 -25 pages with a medium flow ink. Definitely recommend for newbies and anyone who wants a smooth pen.
Since this is my first refillable fountain pen, my experience is virtually non existent. Guided by my son he suggested this pen as a starter. Initially I was hesitant to open the box and actually fill the pen. Fearing an ink explosion and leak that would stain all surrounding areas. Got the pen filled, no issues other than some stains of blue on my fingers ( a badge of honor ) I began using this pen. About two week in I really love the way it writes on most papers. My handwriting has improved to the point I can actually read what was written. The tactile feel of unscrewing the cap and placing nib to paper is a great thrill. So I have begun my fountain pen journey. Thanks Goulet and Ben.
I had already bought one and knew it was going to be wonderful. Thank you! I love my fountain pens!
Medium nib writes like a fine nib but its so juicy and smooth!
Excellent pen, great service!
awesome pen great packaging and kind add ons
Writes smoothly.
The pen is amazing! First and foremost, it doesn’t leak! Next, it’s a dream to use; it starts instantly, it’s smooth and had nice balance in hand. I don’t think it could get much better than this…
I’m not a fountain pen expert, but I own two of these and love the way they write. Refill is intuitive and easy, you can’t beat it for the price!
Best service
I got a purple one a LONG time ago and was not to thrilled with it back then. I am now much more experienced and appreciate them now. They are great for large ink capacity and are actually easy to clean. I have this one filled with FWP The Twilight Symphony, which is water resistant and I use it to write notes on recipes I print out or to just take general notes about things and it works great. The ECO is nice to write with and I love the clear barrel to see the ink. And I don't mind tinkering with them now. I am curious how it will look after I clean it after the water resistant ink is gone. If it stains a bit, not a big deal to me, with the great price on them. I can see how easy it is to end up collecting all the colors!
I bought the extra fine, medium and 1.1 mm pens for drawing. I have had pentel, manuscript, tech drawing pens, single no refill drawing pens and the all clogged, pooled and some just had to be soaked for says to get to work again. These so far are working way better than anything I have ever bought or used….and unlike tech pens, a single nip can make all sorts of line variations just by tilting and turning the pen.
I don't if it was ink or the pen , but was a bit dry
I changed the ink (aurora black) and flushed w dish soap. And put hongdian black instead
And also tuned the nib and now writes with amazing flow
Love the TWSBI Eco !!! Love it!
I purchased my first TWSBI because I liked the Bahama Yellow color but I was surprised at how much I loved the smoothness of the nib and the design of the pen. I added another in black after receiving the first one. Super great pens!
Love this pen and is my daily writer. Don’t really see myself buying more pens. Just different ink.
I love it, it holds good amounts of ink, writes smoothly, and the stub has some flex. There is one downside. I tried cleaning out Diamine Shimmering Seas to put in Jacques Herbin Perle Noir, and the water looked clean, but the Perle Noir was golden-speckled! The ink stuck to the bottom, but after a deeper clean it was fine. Highly recommended.
Obsessed!! My new favorite 😍 no regrets.like butta!
The pen leaked all over. It was a disaster.
Great value. Writes better than pens costing five times as much. Highly recommended!
I love that it comes with maintenance tools. This pen is a steady writer and it is easy to see your ink levels. Easy to clean, writes smoothly, no issues. Great pen for the price.
Writes better than my $700 Visconti and does not dry up!
Great cheap pen. No complaints at all!!
Pen and nib in great working order out of the box, was shipped quicky. This is definately my favorite fountain pen, I write a lot with my stub nib and the small converter barely lasts one page, so the massive ink well is just amazing.
P.S. Love all you video's, I had no idea there was even a fountain pen rabbit hole. But there it is and I fell right down it.
Extra fine point writes beautifully out of the box. Pen holds a large amount of ink and is easy to fill
The Eco is a well built, well balanced fountain pen that writes very nicely. I ordered mine with the 1.1 mm factory stub. It’s an extremely smooth writing nib that lays down a very broad, very wet, very consistent line that exhibits plenty of line variation. But beware if you have small or very small writing as your writing may not show the fine detail that you might want. For people with medium to large writing, this pen with the 1.1 mm stub is gold!
