I’m sure they would work for other vases too. I only tried it on my AEON.
The Aeon vases are funnel shaped and super wide at the bottom. They are very hard to clean properly. The flexibly of this brush made easy work of that. You can kink the brush at a 90 degree angle and clean away.
Note: it took me a bit of time to figure out how to do this properly. You have to kink the brush at a 10 or 20 degree angle (depending on how wide the neck of the vase is). Then once it’s at the bottom you can push on the brush to make the L shape you need. Keep in mind the position of the kink needs to be high enough on the brush, so that when you get the L shape it’s long enough to get to the edges of the vase.