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Title: DO NOT BUY!!
Review: I've tried many sippy cups in an effort to find one that doesn't leak. I purchased these sippy cups based on the raving reviews about how durable these sippy cups are and how they don't leak. However, as soon as I received the cups, I tested them out by turning them upside down and THEY LEAKED, so they easily leak when my toddler plays around with them. PLUS, THEY ARE NOT DURABLE! They now have tons of chew marks from my 20 month old little girl, which did not happen with the other sippy cups I've tried. Needless to say, I've very disappointed in this product and wished I would have returned them upon first noticing that they leak.
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