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Clear TWSBI ECO Fountain Pens

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About Clear TWSBI ECO

The TWSBI ECO fountain pen comes with a clear body and various cap and knob color combinations. Both the cap and the knob are hexagon and the cap will post on the end of the barrel of the pen. The cap also has an inner cap to keep the ink fresh when not in use.

Each TWSBI ECO fountain pen comes fitted with a stainless steel nib in an array of sizes. The pen uses a piston filling system for use with bottled fountain pen ink.

NOTE: The Amazonite ECO fountain pen release revealed a new manufacturing process from Twsbi. Twsbi mixed coloring in the injection molding process to create unique patterns and colors making each pen unique. The Amazonite fountain pen was released on December, 13 2024.

Product Specifications
Capped Length: 5.45 in.(138.4mm)
Posted Length: 6.6 in.(167.6mm)
Length of Body: 5.125 in.(130.2mm)
Length of Cap: 2.375 in.(60.3mm)
Diameter of Body: 0.5 in.(12.7mm)
Diameter of Cap: 0.6 in.(15.2mm)
Weight: 0.45 oz.(12.76g)

Body Material: Resin
Trim Material: Chrome Plated
Section Material: Resin
Nib Material: Stainless Steel

Fill Mechanism: Piston
Cartridge Type: Bottled Ink
Ink Capacity: 1.75ml
Cap Rotations: 1
Cap Type: Threaded
Postable: Yes
Demonstrator: Yes
Clip Style: Spring Metal

Available Sizes & Colors
View all colors & Sizes of the:
TWSBI ECO Fountain Pens

TWSBI ECO Fountain Pens - Black - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Black - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Black - Medium (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Black - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Black - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Blue - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Blue - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Blue - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Blue - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Blue - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Cerulean Blue - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Cerulean Blue - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Cerulean Blue - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Cerulean Blue - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Cerulean Blue - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Clear - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Clear - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Clear - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Clear - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Clear - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Dark Sapphire - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Dark Sapphire - Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Dark Sapphire - Medium (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Dark Sapphire - Broad (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Dark Sapphire - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Glow Green - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Glow Green - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Glow Green - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Glow Green - Broad (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Glow Green - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - GLOW Purple - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - GLOW Purple - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - GLOW Purple - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - GLOW Purple - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - GLOW Purple - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Heat - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Heat - Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Heat - Medium (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Heat - Broad (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Heat - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Matcha Green - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Matcha Green - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Matcha Green - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Matcha Green - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Matcha Green - Stub (Stainless Steel nib)
TWSBI ECO Fountain Pens - Persian Green - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Persian Green - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Persian Green - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Persian Green - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Persian Green - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Purple - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Purple - Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Purple - Medium (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Purple - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Purple - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Sky Blue (Limited Time) - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Sky Blue (Limited Time) - Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Sky Blue (Limited Time) - Medium (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Sky Blue (Limited Time) - Broad (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Sky Blue (Limited Time) - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Transparent Yellow - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Transparent Yellow - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Transparent Yellow - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - White - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - White - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - White - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - White - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - White - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Amazonite - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Amazonite - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Amazonite - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Amazonite - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Amazonite - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Caffè w/Bronze - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Caffè w/Bronze - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Caffè w/Bronze - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Caffè w/Bronze - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Caffè w/Bronze - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Creme Rose Gold - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Creme Rose Gold - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Creme Rose Gold - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Creme Rose Gold - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Creme Rose Gold - Stub (Stainless Steel nib)
TWSBI ECO Fountain Pens - Espresso w/Bronze trim - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Espresso w/Bronze trim - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Espresso w/Bronze trim - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Espresso w/Bronze trim - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Espresso w/Bronze trim - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Indigo Blue w/Bronze Trim - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Indigo Blue w/Bronze Trim - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Indigo Blue w/Bronze Trim - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Indigo Blue w/Bronze Trim - Broad (Stainless Steel nib)
TWSBI ECO Fountain Pens - Irish Green w/Onyx trim - Extra Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Irish Green w/Onyx trim - Fine (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Irish Green w/Onyx trim - Medium (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Irish Green w/Onyx trim - Broad (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Irish Green w/Onyx trim - Stub (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Slate Blue w/Onyx - Extra Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Slate Blue w/Onyx - Fine (Stainless Steel nib)
TWSBI ECO Fountain Pens - Slate Blue w/Onyx - Medium (Stainless Steel nib)
TWSBI ECO Fountain Pens - Slate Blue w/Onyx - Broad (Stainless Steel nib) *
TWSBI ECO Fountain Pens - Slate Blue w/Onyx - Stub (Stainless Steel nib) *

The TWSBI ECO Fountain Pens usually ships within 1-3 business day unless otherwise specified or marked as special order.

* Special orders typically ship in 4-14 business days. However, occasionally due to manufacturer inventory, items can take up to 1-3 months. For a specific shipping estimate on your special order contact Customer Care.

Guaranteed Quality
Each TWSBI ECO Fountain Pens we sell is guaranteed to be genuine, authentic and will arrive brand new & unused!

TWSBI ECO Reviews

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Overall rating:

4.7

out of 5
(42 reviews)

I love TWSBI fountain pens and this TWSBI Eco is awesome! It writes smoothly with an even flow of ink. Pen Chalet provides fast shipping and excellent customer service. I love their tiered customer benefits.

William
Scott City, KS

5 out of 5

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Love Twsbi pens! They write beautifully, feel good in the hand and are an amazing value.

Carolyn
ATASCADERO, CA

5 out of 5

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What can we say? It's a solid $30 pen. We were recommended this as a good starter pen, and got it in broad. It's a solid, cheap demonstrator, and it's extremely serviceable, particularly for the price point. It simply isn't to our tastes as much as other pens. Your mileage may vary - we prefer the Pilot Metropolitan.

Rebecca
Powell River, BC

4 out of 5

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Hands down my favorite stub nib, at least to date. Doesn't have that 'sharp' edge some do in feel or look, which may or may not be what one wants. I do; they write smoother and make even my sloppy writing look good, win-win. I have a small herd of Ecos bc they go for miles and I love every one. They may not be the prettiest, but I try others and keep coming back so that has to say something.

Stephanie
Sacramento, CA

5 out of 5

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I've long used a TWSBI ECO in cement color. Recently I gifted the pen, but needed a med. nib. Fortunately I was able to buy my favorite TWSBI ECO color with a med. nib, Persion Green. Love it and the med. nib which I had to give away. Guess a med. TWSBI nib is in my future. They are a surprise to me (I have a stub and a F) I gifted the TWSBI to an artist who is excited about this new adventure!!

sandy
portland, OR

5 out of 5

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I really like the combination of the navy and bronze. I pair it with Diamine blue/black ink, and it writes very well as all medium TWSBI pens do!

Susan
Pinole, CA

5 out of 5

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Me encanta lo suave que escribe, es cómodo para escribir, peso ideal y sobre todo me encanta el diseño!! Puedo ver la cantidad de tinta y su mecanismo de llenar es súper limpio
Excelente producto! Me encanto!!!

I love how smooth it writes, it is comfortable to write, ideal weight and above all I love the design!! I can see the amount of ink and its filling mechanism is super clean
Excellent product! I loved!!!

Maria
Mayaguez, PR

5 out of 5

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For this price this is a really nice pen and it writes well besides. Glides across the paper very smoothly like a much more expense nib and it looks nice as well.

Albert
Cresskill, NJ

5 out of 5

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The TWSBI Eco is a great pen and feels good to write with. This is a brand I just tried out for the first time recently and I really like it. I have the clear pen. When the cap isn't posted, it has a nice feel, just the right length. When the cap is posted it does feel a little longer, but it doesn't hinder my writing. Looking forward to the green pen being back in stock.

Pegi
Sacramento, CA

5 out of 5

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So far one of my favorite brands and I try to stay away from being a brand "snob". However, TWSBI is becoming a favorite of mine. It writes well and with no scratching. Accepts ink well. I do find that some shimmer inks clog the nib, but only one has done that, so that is not on the quality of the pen or nib. This is a learning curve for me; so no stars taken away for this.

Lori
Lawton, OK

5 out of 5

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