on saleTWSBI ECO Package Set - Clear

Product Code Package-ECOClear-EF

In Stock

out of stock

on saleTWSBI ECO Package Set - Clear

Product Code Package-ECOClear-EF

In Stock

out of stock


MSRP $52.99

Not sure which size nib is best for you?

Try our Nib Nook tool to view and compare nib widths using our writing samples. Learn more ›

We've put together this affordable set to dive into the world of fountain pens. This bundle comes with a clear TWSBI ECO fountain pen that uses bottled ink; a 30ml glass bottle of Monteverde Horizon Blue ink; and an A5-sized Goulet notebook with dot grid Tomoe River 68gsm paper.

The TWSBI ECO fountain pen boasts an incredible value with its piston filling system and affordable price. Like many other TWSBI fountain pens, it features a crystal clear acrylic barrel so you can see your ink level, and a clear cap. The pen cap has an inner cap to ensure a perfect seal when stored away. It is completed with silver trim and a silver stainless steel nib.

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.

Package Sets

Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.

Body Material
Cap Rotations

For pens with a screw-cap closure, how many rotations it takes to uncap/recap the pen.

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).

Compatible inks & refills

Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.

Bottled inks
Filling Mechanism

How the pen fills with ink. Click here to watch our video tutorial on common filling mechanisms.

Grip Material
Nib Size
Extra-Fine, Fine, Medium, Broad, 1.1mm Stub
Nib Color
Nib Material

Whether or not the cap fits securely onto the back of the barrel when open.


Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).

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.

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)
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.


Customer Reviews

Based on 3 reviews
Late to the TWSBI party, but glad I came

What a terrific pen! It is always a risk to buy a new pen that you've not tested, but I am delighted with the TWSBI. And the package with the beautiful ink and notebook made the experience even better. A definite winner!

Graduation gift

Purchased a Twsbi gift set as a high school graduation gift and it was a big hit. And the customer service was great--I called for help picking out a gift and we found the perfect one. Thank you.

Great everyday pen!!! Great inks!

Hello, I bought a twsbi eco m�dium, and I filled it with Emerald of Chivor. I had no previous experience with fountain pens and had no trouble to fill and use the pen immediately. I also got a preppy which I filled with j.Herbin gris de Houle, and it has been amazing to sketch preliminar drawings with it. Almost like Pencil but cleaner, more responsive to thought and more beautiful, without worrying to carry the pen everywhere because it is so inexpensive, and since the ink is not very dark in an EF nib, I really let the line loose and see where it goes. I received several ink samples which I have tried with a glass dip pen, and they are all much more interesting than in the pictures! Everything arrived perfectly and carefully packed. Thank you Goulet pens.