Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Love the Crazy Ball

I have a 3-pound Yorkie who is nuts about balls. He literally howls to play with the crazy ball. The nice thing is that I don't have to throw it, and it tires him out if I let him play with it long enough. Buy four of them, because even a 3-pound Yorkie can be tough on them.