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Title: Brake when they hit the floor!
Review: We got these because we liked other Nubby sippy cups, but needed more. We have had them about two months, always washing them on the top shelf in the dishwasher (which I guess weakens the plastic) and all of a sudden this week each one broke whenever our daughter threw it on the floor. She throws any/all sippy cups from time to time, but these are the only ones that have broken! What a waste of money if they only last 2 months.
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