Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cool while it lasted

I bought the 8in one that is red and it lasted a week.I have a 65lb lab that is 7 months old who loved it! You just have to make sure they don't sit there and chew it; it's NOT a chew toy! I put a ball in it and it challenged her to try and get it out (she would work on it all day).I would not buy it again, however If you do, monitor the dog at all times because once it starts chewing it, the ball will break and it breaks In large chunks that are very bad if swallowed