Even my husband likes them! They fit over most glasses, however, if you have a really wide base on your glass then it is a tight fit. They stay on your glass so when you lift up the glass the flip flop is still on the glass, when you put it down, you have a coaster. These will make for awesome gifts. I especially love how they are designed to sit on the neck of a bottle when gifting them with wine.
I can't wait to use these, next time we have people over.