Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: not recommend this bottle

You have to bite the tip to get the water out. For a baby who just graduates from bottles, they suck the tip the same way as they suck the nipples- They won't bite it. So it is impossible for a baby to get water from it. My daughter is 18 months when I got this for her, and she never get any water out of it. It is a major design flaw.