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Opus 88 Koloro Demonstrator Fountain Pens

Opus 88 Koloro Demonstrator Fountain Pens
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About the Opus 88 Koloro Demonstrator

The Opus 88 Koloro Demonstrator fountain pens are machined from solid bar stock. The pen has black trim and a stainless steel nib.

Designed as a true eye dropper fountain pen that holds 4ml of ink, the Opus 88 Koloro has a center rod with a knob to control ink flow. The pen comes in gift box presentation and included is a glass eye dropper for filling the pen.

Note: The Opus 88 Koloro Demonstrator fountain pen will not post. The pen has been machined from solid resin therefore the interior of the ink chamber has not been polished but has a cloudy look. Size for the stub nib is 1.5mm.

Product Specifications
Length: 5.875 in.
Diameter: 0.688 in.
Weight: 0.9 oz.
Nib Material: Stainless Steel
Fill Mechanism: Eye Dropper
Cartridge Type: Bottled Ink

Available Sizes & Colors
  • Opus 88 Koloro Demonstrator Fountain Pens - Demonstrator - Fine (Stainless Steel nib)
  • Opus 88 Koloro Demonstrator Fountain Pens - Demonstrator - Medium (Stainless Steel nib)
  • Opus 88 Koloro Demonstrator Fountain Pens - Demonstrator - Broad (Stainless Steel nib)
  • Opus 88 Koloro Demonstrator Fountain Pens - Demonstrator - Stub (Stainless Steel nib)
The Opus 88 Koloro Demonstrator Fountain Pens usually ships within 1 business day unless otherwise specified.


Guaranteed Quality
Each Opus 88 Koloro Demonstrator Fountain Pens we sell is guaranteed to be genuine, authentic and will arrive brand new & unused!
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Opus 88 Koloro Demonstrator Reviews

quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Overall rating:
4.8
out of 5
(35 reviews)

 
Ink capacity is great, the pen looks fantastic, and it is a nice size to hold.

I bought this to try Azizah's (of Gourmet Pens) "hack" of putting the Pilot Parallel nib on the Koloro Demonstrator. It is so much fun!

SAN DIEGO, CA
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
This pen is just a fantastic writer. I ordered mine with a broad nib, and it's hands down the smoothest, juiciest pen in my collection. The stopper that regulates ink flow is a nice feature. At first I wasn't sure quite what I thought of it, but now that I've had a few weeks to write with it, I really like how I can reduce the wetness by closing it up if I'm using paper that can't quite withstand a big, broad, gushing nib. But with paper that can stand up to all that ink...it's a writing experience like none other. I wouldn't suggest this pen with a broad nib as an EDC, but for journaling it's wonderful. It's my first Opus 88 pen, but I'll definitely be buying more. I'd also like to add that Pen Chalet packaged it with care and shipped it to me faster than I expected. I was very please with all aspects of this purchase.

Bakersfield, CA
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
A solid and stout, well made pen. I went with a broad since this thing holds a massive quantity of ink. The nib is smooth as silk and flows fantastically, and you barely need to contact the paper. My only negatives are the fine threads on the cap which look nice, but it takes four and a quarter turns to remove. The threads on the stopper knob are also very fine and tedious to open, but you don't have to do it for shorter writing sessions. I also wish the black finish on the clip was glossy instead of a flat finish, but that's subjective. I recommend this for those who are into demonstrator style pens, or just larger pens.

Troy, OH
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Out of this world; writes like no other pen in my collection. Broad nib too wide for poor quality paper due to feathering of j herbin ink

Augusta, GA
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Everything about this pen suits my taste perfectly-a fat Demonstrator with a stub. Kudos to Opus for coming up with this pen. Before I forget, it is also a wonderful writer with just an iota of feedback. I gave it Below Average for functionality because of the number of times the cap needs to be rotated. Otherwise, this pen is solid.

Singapore, Singapore
overall: 4 out of 5
overall rating 4 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Opus 88 as much as I tried to love this pen I truly hate it. I knew going into this purchase the cap was not post-able and I guess that is my pet peeve on using it. Then there’s the size “ladies” some think size matters but I don’t. If it works it works and if it doesn’t well it goes to collections (pen drawer). Fine nib and all that but not my cup of tea or in my case a bad beer.

Brooklyn, NY
overall: 4 out of 5
overall rating 4 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Love this pen. The nib is finer than a Western Fine which I really enjoy. The amount of ink it holds is amazing. The build quality is excellent. It is big but I love larger pens.

Roswell, GA
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Love the pen. Absolutely Beautiful and an extremely smooth writer. Note to you all who will use the piston feature regularly to stop the flow of ink into the feed. In my experience with Organics studios inks, it takes 3-5 minutes for the ink to begin flowing again, which can be annoying if you want to write right way. I'd leave it "unstopped" if you plan on picking it up over and over throughout the day to write.

This is a wonderful pen!

Nashville, TN
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Writes like a dream

Fort Lee, NJ
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
I love this pen. The steel nib is very smooth, the pen is light weight, and with the right color in it (I used Diamine Antique Copper) it is beautiful to look at. Build quality is also exceptional. Would I like it to post? Sure, but it is not an issue because unposted the pen is large enough to not need posting. All in all a very nice pen for a reasonable price.

Buffalo Grove, IL
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
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FAQs about the Opus 88 Koloro Demonstrator

Q:
Does the Opus 88 Koloro Demonstrator come with a #6 nib?
Asked on Aug 28 2018 by Michael
A:
Yes, the Demonstrator comes with a #6 nib and the other Opus pens come with a #5 nib.
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Opus 88 Koloro Demonstrator Video



Video Script

This is the Opus 88 Koloro Demonstrator Fountain Pen. It comes in a brown cardboard sleeve with the Opus 88 logo embossed in gold on the top. That sleeve slides off and there is a black cardboard case for the pen. "Opus 88 Fine Writing Instruments" on the top corner as well as "Since 1977" at the bottom corner.

A magnetic catch here on the hinge of the lid of the case that opens up. Information about the Opus 88 included. It is an eye dropper pen, so included with the pen is one glass eye dropper. The eyedropper actually extends out, or slides back in to fit in the case. It's made of glass. It's not a plastic eyedropper so it's a quality eyedropper. And then, of course, we have the Opus 88 Koloro Demonstrator Fountain Pen. A little bit of an oversized pen, but a pretty good size. I like the design of it. It has a black clip on the pen. "Opus 88" is imprinted on the bottom of the cap, beautiful, clear resin on the pen. It is a machined pen, so the outer part of the pen has that glossy finish, and you can see the glossy finish on both the top and the bottom of the pen.

Inside of the pen, however, since it is machined, it gives you a little bit of a smokey look to the pen. It is not completely transparent, but a little opaque. It comes with a stainless steel German nib that has "Opus 88" engraved on it, and the feed on the back side. It is an eyedropper-style fountain pen, so you would unscrew the front section on the pen, and then with that eyedropper that is included, you would fill the ink into the barrel of the pen, and then reattach it. There's a small O-ring here to keep the ink from leaking out and keep the pen sealed. The backside of the pen will unscrew as well and it has a piston that runs through the center of the barrel of the pen. That piston is more to keep the ink agitated, or to burp the pen if you need to, but really it doesn't have any problems with burping or any issues with the pen. It's a great design. It has an eyedropper system that's found on a lot of high-end pens. So great design, beautiful pen. I love the black and the clear demonstrator design, or look of the pen.

Get your Opus 88 Koloro Demonstrator Fountain Pen at PenChalet.com!
Retail: $120.00
Ships in 1 business day.


Additional $19.95
No Engraving
Block Font - ALL CAPS
Block Font - Upper & Lower
Script Font - Upper & Lower
Please allow an additional 5-10 business days for engraving.
Read our complete overview of
pen engraving for more details.


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