exactly what i wanted

4 stars because both reusable storage cases were broken. After washing them, I put them in a plastic freezer bag lying flat. They did take 2 days to freeze but now are freezing up within hours.I am using them in a lidded thermal mug for iced tea and they stay frozen and cold for hours. After use and washing, I put the unfrozen ones in a small freezer bag inside the larger freezer bag. One had a hole and leaked. Tested each as they were used and the other 39 are Fine. Much better than buying a bag of Ice for $2.00 every few days.

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