It's always easy to be skeptical about unmade parts, but I'm always willing to roll the dice at least once. Due to Covid-19 and home schooling we had to print more for our daughter and quickly ran out of black ink. We decided to take the whole package as we will need it at some point. Luckily it arrived quickly and after I re-learned how to install cartridges we were on our way. Since then we have had no more problems with the black color and subsequent replacement and will buy them again in the future.