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These work pretty well- as long as they fit your containers closely- if not they are hard to get on or just drape over the top, which is how we use them most. Easy to clean- just wet and soap them up as if you are washing your hands.
It doesn't fit on or stay on many things. The half of the pack is totally useless, I tried them on round or square bowls, plates, cans, jars, or glasses. Only 2-3 fits on a couple, and with a real effort to stretch them!!! It's totally disappointing and totally a waste of my $15.