ZZKOKO Calligraphy Ink Bottle vs Hongdian Fountain Pen Ink Cartridges

The ZZKOKO Calligraphy Ink Bottle hasn't managed to get enough recognition from sources that do high-quality hands-on testing and therefore didn't make it into any relevant roundups. That, by itself, makes it difficult to recommend.

As for the Hongdian Fountain Pen Ink Cartridges - it wasn't considered to be a good enough purchase to earn a spot in any roundups conducted by sources that perform objective hands-on testing, which typically indicates that a product isn't worth its asking price.

As a last step, we wanted to do a head-to-head ZZKOKO Calligraphy Ink Bottle vs. Hongdian Fountain Pen Ink Cartridges comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.