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Title: Maybe They Work in Space?
Review: I am not sure why this product has gotten any good reviews. I tried three bags before giving up. The zipper seals were horrible and time consuming, and I absolutely could not get one of them to stay sealed. The other two sealed after much effort (and YES, I stopped filling significantly below the line), but they compressed very bumpy and completely unstackable. They simply do not do what they claim to do, and that is the mark of a bad product.
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