Opus 88 Koloro Fountain Pen

Opus 88 Koloro Fountain Pen Review and Giveaway!

Hopefully everyone is enjoying the Holidays and are gearing up for the New Year. To celebrate, we are bringing you a review and giveaway of our most popular new pen brand of 2017, Opus 88. That’s right, we’re reviewing and giving away an Opus 88 Koloro Fountain Pen. Hailing from Taiwan, this innovative eye-dropper style fountain pen has been hard to keep on our shelves. Continue reading for a chance to win an Opus 88 Koloro Fountain Pen of your choice from what we have in stock!

Opus 88 Koloro Fountain Pen Review

Opus 88 Koloro Fountain Pen Review


The Opus 88 Koloro Fountain Pen has transparent sections that allow you to see the ink levels inside. The Koloro also has ebonite sections that compliment the resin and give the pen a nice clean look. The Koloro comes in four different colors and is available in three nib sizes. Pictured here is the popular Blue Tan color of the Koloro. All of the Koloro’s come with chrome trim, and a matching chrome clip. Engraved on the bottom of the cap, as well as on the nib, is the brand name Opus 88.


The Opus 88 Koloro Fountain Pen is an eye-dropper only fountain pen. It has a large ink capacity of 2 ml. Each pen comes with a free, high-quality eyedropper. Due to the notoriety of leaking for eye-dropper fountain pens, there are a few features worth mentioning on the Koloro. First, there are two o-rings in the pen. There is one that resides behind the nib unit, and the other is just below the threads of the grip sections. These two o-rings help prevent possible leaks. Second, the Koloro also has a piston in the back connected to a rod inside the ink chamber. This piston can be unscrewed to allow air flow into the pen, to help prevent burping due to the transfer of heat from your hand. As well, the rod doubles as both an agitator and primer for the ink. This eye dropper design is found among high end pens and is one of the features that make the Opus 88 Koloro an excellent eye dropper pen.


With all of that said and done, the true test is still to be spoken of. For this review, we used a Blue Blue Opus 88 Koloro Fountain Pen with a Broad nib that one of our employees received for Christmas. We had him ink it up with Nagasawa Kobe Nada Brown Ink. During use, there were no issues with burping or any leakage. The nib was juicy and laid down a lot of ink, although, your experience may vary based on the nib size that you select. All in all, the Koloro gave a wonderful writing experience and was a joy to use.


If you’re new to fountain pens, or have been a user for too many years to mention, the Opus 88 Koloro Fountain Pen needs to be a part of your collection. Not only does it have an ingenious design, it’s also very affordable! Don’t forget to subscribe to our blog so that you don’t miss out on any new releases or giveaways! Comment below about what you think we should review next!

Enter to win an Opus 88 Koloro Fountain Pen!

Enter to win an Opus 88 Koloro Fountain Pen of your choice from what we have in stock!
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Opus 88 Koloro Fountain Pen Review

Opus 88 Koloro Fountain Pen Review

147 thoughts on “Opus 88 Koloro Fountain Pen Review and Giveaway!

  1. geoffreyjamesdunn@gmail.com'Geof Dunn

    Wow!!! This looks like an amazing pen and your thorough and informative review just makes it better. The design, with the ebonite sections and the different colours is genius and I would love to add one of these to my small collection. Thank you so much for the opportunity.

  2. reparish@gmail.com'Ron Parish

    That is one sharp looking pen. I’ve already read several reports on this incredible pen and would certainly like to own and write with one. Thank you so much for the opportunity.

    As to what to review, I think it would be nice to review Waterman pens.

  3. pacojones@me.com'P. Jones

    Thanks for the opportunity. I think you should review the Franklin-Christoph Model 31 Omnis. I received one for the holidays and I absolutely love it.

    My favorite ink is a kind of troublesome ink at times but I use it anyway because I love the color and permanence of the ink, it’s Noodler’s 54th. It creeps all over my nibs, it widens every nib I use it with, yet, I continue to fill my pens with it.

  4. Boringcollegestudent@gmail.com'Meghan

    My current favorite ink is the J. Herbin 1601 Emerald of Chivor, but I’m also loving Monteverde Brown Sugar–so cozy for winter!!

  5. pencilmein@me.com'SusanJ

    It’s tough to pick just one, but right now, my favorite ink is Organics Studio Nitrogen Royal Blue. Thanks for the giveaway, and happy new year!

  6. mitul_world@yahoo.com'Mitul

    I do have a few Eyedropper (ED) pens. And none of them have a piston arrangement at all. To agitate the ink, simply shake the whole pen. It has always worked nicely. So can you please shed some light on the need of piston/rod in an ED pen?

    The ED that I have are few Platinum Preppy, Pilot ED Tank, ASA Nauka.

    1. braden@penchalet.com'Braden Nielsen

      Hi There! The rod doubles as an agitator and a primer! With most c/c pens, you can squeeze the cartridge, or twist the converter, to push out a little ink through the feed to prime the pen. With eyedropper pens, gravity does all the work, and you have no way to prime the pen. The Koloro, however, uses the rod (with the vacuum that is created in the ink chamber, to be able to push a little ink out and prime the pen. Thus, it solves one disadvantage to using an ED pen.
      -Braden from PenChalet

  7. Jlshepit@gmail.com'Jennifer shepit

    Well this is what I wanted you to review next, so…. I’m currently loving my j.herbin Gris Nuage ink, which I didn’t expect!

  8. johncooper1388@gmail.com'John

    When you are testing a pen/ink what do you like to put down on a sheet, looks like lines in different directions, ink splot, and some writing?

  9. penarbor@gmail.com'Penarbor

    Review of any new inks is always welcome! My 3 favorite inks are Iroshizuku Asa Gao, Waterman Serenity and Aurora Blue. I like Blue!

  10. Kati.mitchel@gmail.com'Kat

    This is a very sleek pen. It looks innovative with clean lines. It is a great giveaway. The colors are fantastic and being an eye dropper is such a bonus.

  11. dangold8@gmail.com'Dan Goldman

    You should do an article on Frankenpens. I have a couple of 1970s Parker Big Red ballpoints that I’ve converted to fountain pens!

  12. smrtpants@gmail.com'Amanda P

    This pen is gorgeous. I’d probably want to find a matching dark green ink. 🙂 My current favorite is Diamine Meadow.

  13. aleyajewelry@gmail.com'Shuchorita

    That blue is STUNNING!

    I would love to see some sort of review doing a basic overview of some of the usual vintage pens floating about 🙂

    Thanks for the awesome giveaway chance!

  14. toni.beyer@me.com'Mary A Beyer

    What a lovely and unusual pen!! This is a very generous giveaway. Anyone who wins this pen, would be fortunate to do so. I would like a review of Waterman pens and Organics Studio Ink – Wedding Bell Blue. Thanks for this thoughtful and generous giveaway! HAPPY NEW YEAR to you all!! <3

  15. I_me_sakshi@hotmail.com'Sakshi Reddy

    I love eyedropper pens, they have great capacity and are a breeze to clean out. This one looks like a beauty! Thenks for the review and opportunity 🙂

  16. b.fralix@hotmail.com'Beth A. Fralix

    Lovely Pen! Would love a review of any of the new Purple inks! May you have a Prosperous Happy 2018!! God Bless & Love You Bunches!!!

  17. margessw@icloud.com'DUMONTIER Marjorie

    It seems to be a great pen ! I’d like you to review either Copper Noir or Jade Noir or Mercury Noir inks from Monteverde ; or any of the Sailor Storia inks ; or any of the Stipula iron gall inks ; or the Kaikyo Blue or Kitano Ijinkan Red or Nunobiki Emerald or Sumaura Seaside Blue from Kobe Inks.

  18. mclbagsic@gmail.com'Mark

    The design of the pen is exquisite. The nib is lovely. And the writing, superb. Hope to b d lucky one to receive this awesome giveaway

  19. jljovano@aol.fr'Jean-Loup

    May you please seriosly talk about Pelikan and the Bock nibs ? Also, the new indonesian (from Kwala Lumpur) owners of Pelikan and how it will destroy it ?
    Thank you 🙂

  20. Ana.g.csiky@gmail.com'Ana G. Csiky

    Thank you for the review and giveaway. I have had my eye on this pen in yellow for some time and can’t wait to try it. The piston at the back end reminds me of vintage and modern Japanese luxury pens (such as some Namiki) and am looking forward to trying writing with this feature (as opposed to my “tinkerer’s eyedroppers”).

  21. ejaycock13@gmail.com'eric aycock

    That is a beautiful pen. I would love to see comparison of various stationary paper to use for pen pal letter writing

  22. tinneyp@hotmail.com'Patrick Tinney

    I have only recently started using an eye dropper fountain pen. I also have recently discovered what nice take-em-out-of-the-house pens from Japan and China; my Watermans, Parkers, and Pelikans no long leave my office. They are old like me. It would be interesting to see if a Taiwan pen is as nice for the price and some of the Chinese pens I’ve used lately.

    Have you ever reviewed J.Herbin’s Perle Noire. I’m actually thinking about using this as a drawing ink.

    Thank you.

  23. sgsflyer@msn.com'Stephanie Smith

    Favorite ink – that’s a tough one. I’ve been partial to the Pelican Edelstein series for awhile. I missed getting a bottle of Lamy Petrol and was disappointed that they are impossible to come by these days. I recently acquired a BP version of Mont Blanc Antoine de Saint-Exupéry (dark saffron) and am anxious to acquire it in bottle form. I’ve been really impressed with the colors selected for their writer’s series. I think that fascination is what has drawn me to some of the ink of the year colors for Lamy and Pelikan – they aren’t your average blues, blacks, and browns.

  24. cathy2314@hotmail.fr'Catherine

    Refreshing design
    Looks really unique and if the blue was lighter and brighter, the pen would look like the sunny beach 🙂

  25. S.keenes@live.ca'Spencer K

    Still on the hunt for the perfect grey ink for my all black VP. Any help from your reviews would be awesome.

  26. mingibergsson@gmail.com'M. Ingibergsson

    This looks like a lovely pen. As someone new to fountain pens, I am interested in good beginner pens.

  27. thejaemac@shaw.ca'Jennifer McLean

    I love Noodler’s bullet proof because I’m a watercolor artist and using pen under my watercolors makes everything easier.

  28. bleumoon3@gmail.com'Angela

    Holy Fountain Pens, Batman! I’ve never used one of these cool pens. I think it would make a great addition to my pen box.

  29. lizdomino7@gmail.com'Liz Domino

    That looks like an amazing pen. I love eye dropper pens, even when I end up with seriously inky fingers.

    I’d love to see more reviews like this, items that aren’t as well known.

  30. hcmarks@gmail.com'Harry Marks

    I’ve been really particular about the pens I buy, but I may get this one regardless of whether I win or not. I LOVE the look of this pen!

  31. writerstephen@gmail.com'Stephen Trimble

    Please review some Organics Studio inks–specifically Walden Pond Blue! Also, the Paraphernalia Divina fountain pen!

  32. jformoso@stevens.edu'Joe F.

    I’m intrigued by the agitator/breather mechanism designed to help prevent burping. Also, it’s a really nice-looking pen — the clear/solid parts complement each other nicely.

  33. Geoffreyjamesdunn@gmail.com'Geof Dunn

    I’ve never had an eye dropper pen and would love to win this beautiful Opus’s 88! I like the idea of a juicy wet broad nib as you described in your review. Thank you very much for the chance to own one!

  34. matt.sugerik@gmail.com'Matt Sugerik

    This pen looks amazing. As far as favorite ink goes, it’s a constant battle whether or not to ink with Robert Oster Fire & Ice or Diamond Oxblood. Good luck everyone!


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