Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

This rattle is easy to hold and has an added advantage of being able to roll around the floor. This makes my grandson want to crawl after it. It's well made, makes a nice rattling sound. I would buy it again for my grandson as it is quite nice. He didn't show interest in it until about 7 months and now that he is one plays with it a bit. The only negative comment I have is that he loses interest in it after a very short time.
Positive