I like the assortment of colors. They work as intended.

The buying experience was fine, the product was less than par.

Good mix of colors and good quality ink. I purchased these because they come in the short international cartridge size, and I'd recently purchased a pen that only uses that size. In addition to the nice assortment of colors, the cartridges come in a handy plastic case for storage.

Cartridges that fit my Innova Formula M pen. A variety of colors that are fun to write with and last pretty long. I'll buy it again!

A color for every mood...so far ;-)

One cartridge was almost dried out after a few days. Ink appears to be in the cartridge, but when inverting there is not any ink flowing to the small clear space on the cartridge.

The pen is beautiful and it writes extremely well.

Great variety of colors at a fantastic price!

Very good

I really like this pack of assorted cartridge colors. I actually bought packages and shark fountain pens for student students that graduated from my school. I had nice notebooks to go with them, to me it was the perfect thing to receive, and I'm hoping that my students will have fun with what is probably their first fountain pen.

I love me a multitool and this one is the best for my desk job!

Smooth writing, easy to use. Only 'negative' is they are small, BUT I can use the various colors quicker!

I have only used two cartridges so far but both have been great! I like being able to try multiple colors.

Great. Excellent ink, color and flow, quick drying, in a fun pack of rainbow colors to play with in International Standard short size.

This is a great set as someone new to fountain pens! I almost wish I had more pens so I can write with all the colors immediately lol

These are a nice change from everyday ink.

So far�so good. After cleaning my new pen, & changing cartridges, ink flowed much better! Thank you.

I haven't had the pack long enough to try more than a couple of colors. Those I did try were ok, but lighterin color depth than I prefer. The plastic packaging is handy, but the stick-um they use for the seals is awful. Doesn't want to come off even with Goo gone

Very good service with nice amenities of notes and a Tootsie Roll pop. :) The Monteverde Monza pen is very good and the fine nib writes smoothly on the paper I commonly have available. The ink cartridges came in a polymer container. The ink was really good with good color expression and less bleed through and with good drying time such that I had no smears. As my writing style is slow (I'm 70), I seldom have smears. I've just restarted using fountain pens and was pleased to find Goulet Pen Co. Thank you all.

These inks are a cheaper way to sample ink than buying ink samples. I will also take a couple with me when I travel so I can easily re-ink my travel pen as needed. My only recommendation would be to include the names of the colors in the package. I had to go back to the on-line page and write down a note to slip in the color mix package so I can remember the cartridges.