Title: Now, not pleased-
Review: At first I was pleased but now find the rubber piece on the bottom of two of mine have separated from the stainless base!!! I took some high-powered glue and re-attached them but now I am buying the Nissan 18 ounce stainless "hydration" mug because there is no rubber base-ring at the bottom to separate, just to warn people this happened after having these for a few months. Otherwise keeps things warm or cold for a long time.
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