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Title: Sadly, this is real junk.
Review: From the photo, I thought these stackers would be solid and open up to a round shape...which would make stacking easy. They came flat, and if you look at the product picture, you can see that there are a series of creases. Well guess what? It's up to YOU to fold each crease to make the stackers into a round shape, which takes a great deal of time and still doesn't seem to come out right. You might as well cut a band out of the next box of other Amazon stuff you get, and bend it along random creases in the cardboard. It would look the same, and cost a lot less.
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