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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
(29 reviews)

 
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
BIG Pen with Awesome Features! I was instantly impressed with how smooth this Fine nib was. Loved the fit and finish of the pen body, and the internal "stopper" piston is a great relief when you might want to carry this around on the daily but wonder if you'll find yourself with a cap full of ink!

The fine nib writes much like a TWSBI Diamond 580 BROAD. I was a little surprised by its flow--WET! I perhaps thought for some reason that the Fine nib would be, well, more fine :). But I absolutely love it.

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
Very impressed with this pen. I like it more than the Koloro in part because it has a larger #6 nib. The pen does not post which concerned me at first. I tend to post my pens mainly because I prefer larger pens and posting gives me a bit more to hold on to. But rest assured the pen is plenty large without the cap. Feels great to write with.

santa cruz, 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
Let’s start with the bad stuff:
...
Okay, now that we have that out of the way...
The good stuff:
This pen looks amazing, the flow is wet but never leaky, the vacuum seal is great for travel, the clip slips easily over fabric but still holds tight, the nib writes smooth with no skips, the grip section is big and not slippery (my wife has small hands and still loves it).

I’ve had this pen for about 2 months and would recommend it to anyone!

Toledo, 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
I love, love, love this pen. It has turned into my EDC because it is a solid pen, bulk filler without the drips and drama. I swapped the nib for a titanium nim and this baby is my everything. I am a fiction writer and while I type a lot, handwriting is a daily activity for me for creative reasons.

This pen is solid and while large, it is very comfortable for me. I have smaller hands, 6" wrist even for a plus sized girl and my hand does not cramp with this pen like it does with other pens. The material is usually warm and comfortable feeling. The valve is exactly what I have been missing from every eyedropper pen I've tried. This seriously makes the word of difference for ink flow and no drips. It holds an ample amount of ink and I have nothing bad to say about this pen.

Las Vegas, NV
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
Fun fountain pen! Thanks, Ron, for the recommendation!

Saint Petersburg, FL
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
The Good: Looks great, especially with a barrel load of bright ink. Nib is buttery smooth, even on poor quality paper.
The Bad: Too big to be a pocket pen (although I knew that going in). 4 1/2 turns to get the cap off (also known before purchase). Nib seems to scratch up inner of cap (wasn't aware of that). Not a big deal, but such a pretty pen soon looks a little, well, used.

Overall, a great pen for the price, with fantastic service from Pen Chalet (Less than a week from placing order to inking up, all the way down here in Australia!!!)

Altona Meadows, VIC
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 4 out of 5
function:
function rating 4 out of 5
style:
style rating 4 out of 5
value:
value value 4 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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