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Title: The perfect sipper
Review: We bought these at the same time as the strawless Nuby sippers. My daughter has been drinking her water from these since 7 months. She is able to get them open (and closed) herself and I've never had a problem with leaking. We also have the insulated ones. I would recommend those as well but the outer shell will crack if tossed enough times. The cup still works regardless. A little timely to clean thoroughly and put back together properly, but worth it if you're looking for a non-spill sipper.
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