Review (1/5): Do not work...don't buy!!
I bought these with high hopes of not having to dig my fingers to the back of my mouth to remove my aligners. Those were false hopes unfortunately. These things do not latch onto the aligners at all, and when they do they don't hold tight enough to remove anything. I ended up using my fingers anyway.
And of course, by the time you figure out they don't work you've had them in your mouth and cannot return...so for your own benefit I say..DO NOT BUY. Just use your fingers....these things are just a pointless gimmick (and way too expensive for the tiny pieces of plastic they are anyway).