Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Recommend for younger babies as first sippy cup

These cups are great to introduce the sippy early and get rid of bottles. We used them from 9months till about 13months and then transitioned to cups and the harder, valve sippy cups. They are soft and easy to introduce and your baby does not need a long of hand dexterity to use. However, they do not last very long (although they are SUPER cheap) and babies eventually learn how to make them leak all over. Once my daughter learned to turn it upside down and mash it to get fluid to come out, I knew that it was time to transition to a cup and the hard top sippies. Once they have that dexterity, there is no need to keep them using these.