Opus 88 Demonstrator Sapphire Fountain Pen Review

(Sarah Read is an author, editor, yarn artist, and pen/paper/ink addict. You can find more about her at her website and on Twitter. And her latest book, Root Rot, is now available for pre-order!)

Another winner in the lineup of Opus's ink tank pens. This limited edition Opus 88 Demonstrator in Sapphire is a stunning acrylic in sparkly, swirly blue and purple. The finial and end cap are a clear blue resin. The demonstrator name is a little misleading in this edition, as the body of the pen is opaque enough that you can't see much of what's going on inside. But there are cool things going on inside.

This pen is an eyedropper fill pen, and it comes with a glass eyedropper you can use to fill it. The grip section unscrews from the body, then you use the eyedropper to fill the whole entire pen body with ink. It's a lot of ink. This pleases me. Also in the pen body is an ebonite piston and gasket, which seal the ink chamber off from the feed and nib, which helps to prevent leaks and burping. To set the ink free, you unscrew the clear blue end cap, which pulls the gasket away from the feed and lets all that good ink flow. This is great for longer writing sessions, when you want to drain as much ink as possible. Then you can close the end back up for transporting the pen.

Pro tip: after filling the pen, loosen the end cap and let it sit nib-down for a few minutes. If you fill it and let it sit with the gasket closed, you're going to wonder why there's no ink flowing and be puzzled for a minute, before you realize that the ink is sealed off from the feed, so of course it's not writing, and then you'll feel kinda silly. Hypothetically.

Once it is writing, which will only take a few minutes if you are very clever, or few hours if you haven't had enough coffee that day, it writes very well. The pen uses a black stainless steel #6 JoWo nib that comes in EF, F, M, B, and a 1.5 stub. My pen has the stub nib, which is perfect for working through all that ink.

This pen ended up being the MVP of my NaNoWriMo efforts. I wrote four pens dry before I inked this one up, and it saw me through to the end of the month. The fact that it's so dang pretty doesn't hurt, either.

You can snag this pen at Pen Chalet for $140. Between the looks, function, and great build, I would likely have bought one, myself, if Brad didn’t send it to me. I'll be happily writing with this pen for a long time. Today. Because it's the last day of NaNoWriMo and I'm not done yet.

(Pen Chalet provided this product at a discount to The Pen Addict for review purposes.)


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Posted on November 30, 2023 and filed under Opus, Fountain Pens, Pen Reviews.

November Sponsor Spotlight

Sponsor support is very important to me here at The Pen Addict. My sidebar advertisers put their faith in me to deliver good value for them month in and month out, and I want to shine the light on the best of the best for you. If you are shopping for pens, paper, inks, and more, please check out these great companies and see what they have to offer. Some recent highlights:

Goldspot launched their latest Retro 51 exclusive, the stunning Tornado Rollerball in ’Tis the Season Diamondcast Resin.

Vanness Pens received two brand new Opus 88 pens, the Demo in Pink, and the special edition 2024 Green Demo.

JetPens has the newest Platinum 3776 release, the beautifully Blue and Rose Gold Sands of Komodo.

Pen Chalet has fresh inventory of the new Otto Hutt Design 03 in both the Green/Blue and Magenta/Orange colorways.

Posted on November 29, 2023 and filed under Sponsors.

Mr. Rouge Estuche Pen Case Review

(Jeff Abbott is a regular contributor at The Pen Addict. You can find more from Jeff online at Draft Evolution and Twitter.)

You can never have enough bags, pouches, and cases, and that's a good thing because there's always a new one that fits an aesthetic or functional need for your everyday life. The Mr. Rouge Estuche is a lovely case made of leather and felt that does one thing really well and with great style.

This handmade case is on the smaller side, but still manages to fit plenty of writing instruments or other small objects. The two snaps on either side keep the top flap from opening easily and letting the contents spill out. The snaps are actually really strong, so I have no worries in terms of the case accidentally opening.

The leather that makes up the exterior of the case is supple and pleasing to touch. It has a nice aroma and a great medium brown hue that will age wonderfully with use. The interior is made of natural gray felt that is incredibly soft and thick enough to provide some good protection. I like that the felt extends past the leather on the exterior of the case, but I wonder if the felt will wear out or discolor quicker than the leather.

The straight stitching that holds the case together is well done and features a cream-colored thread that provides a nice contrast of color against the brown leather. Every corner and edge on this case is meticulously precise, and that just adds to the luxurious and high-quality feel.

There's no branding on the case outside of a red leather loop on the side of the case, which gives you a hint as to who made it (Mr. Rouge).

In my testing, this case comfortably holds 6-10 ballpoint or gel ink pens, and 6 fountain pens. It's not wide enough to hold a new woodcase pencil, but it does fit an Apple Pencil or a woodcase pencil that's been sharpened down to less than seven inches.

Since this pouch is a flat design, it bulges as you put objects inside it, so you can't overstuff it. It's not meant for carrying an excessive amount of stuff, but it also comfortably holds more than you'd think.

The Estuche (which is Spanish for case) is handmade in Mexico and retails for $26 USD from Amarillo Stationery. For the materials and precise craftsmanship, this is a great deal. I really look forward to using this and watching the leather take on its own personality as time goes on. This would make a great gift for stationery fans, but it's also great for those people in our lives who aren't as mesmerized with pens and paper since you can use this pouch for anything.

(Amarillo Stationery provided this product at no charge to The Pen Addict for review purposes.)


Enjoy reading The Pen Addict? Then consider becoming a member to receive additional weekly content, giveaways, and discounts in The Pen Addict shop. Plus, you support me and the site directly, for which I am very grateful.

Membership starts at just $5/month, with a discounted annual option available. To find out more about membership click here and join us!

Posted on November 29, 2023 and filed under Mr. Rouge, Pen Case.