Instruct: Classify the given review into positive or negative sentiment.
Query: Fun for casual play

We are in no way serious table tennis players, and barely know what the star ratings for ping pong balls mean, but we play a lot on the weekends for fun, with the kids, and these are just fine. They definitely are better than some of really bad thin-as-eggshells-with-no-bounce ones we've seen, and it is kind of fun to watch the patterns spinning after you hit the ball, especially if you try to apply spin with the racket. No complaints at all, but somehow I suspect that a serious player would need a more serious ball. I also assume a serious player wouldn't be interested in balls with sports patterns on them anyway in the first place, so there you go. If you ask my kids, they'd easily give it 5 stars.