Thanks to these labels, I no longer fear placing a lid on the wrong color ink pad container. There are many shades of green or pink and they can be hard to discern one from another. I know, I know, put the lid next to the ink pad while using. The lids move!
Dropped a container [size 12x12 paper holder] full of these inks once; had to ink paper, then try to match that to lid color. Still using the same containers, so it could happen again.
If you have more than a handful of mini-cubes, do yourself a favor and buy these labels. The labels will make it easier to match lids with containers while you're using them and also in case you accidentally drop them.
Hopefully, new ink colors will come with the label already on the container. And, as another reviewer mentioned, having the color's name on both sides of the label would be a nice improvement.
Now if the containers were only a bit easier to open - using Tim Holtz die pick normally works.