One of the great things about the thinkbaby system is that you can convert the baby bottles into our award winning Sippy Cups. Simply purchase the thinkbaby Conversion kit from your local retailer or online. To convert, remove the baby bottle nipple and replace with the Sippy Cup spout. Then place the Sippy Cup handles around the top of the baby bottle and push down over the neck of the bottle. Tighten the collar with spout around the neck of the bottle and presto, you have their award winning Sippy Cup!
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