Fun, but not what he should.

We bought the ball for our 8 months old daughter as a Christmas present. I thought that it vibrates and thereby tumbles through the entire room and so encouraged to crawl behind. Unfortunately, he does not do that. Whether laminate, PVC or carpet - it moves only over short distances back and forth.
Fun he makes her anyway, vibrate it finds great, she always holds the ball in his mouth. The colors are beautiful, everything is handled well. The music is annoying, I also unfortunately overlooked that it makes noise at all. But children will find the course is great. He also responds to your touch, so you him not constantly on or off needs.
Crawling can now also without the ball and he is recorded occasionally. So at least no complete failure purchase, although I expected a little more.