We have the blue maxafe exercise ball and are quite happy with it. In other reviews we have read of the smell that would have the ball. He smells actually slightly sweet after unpacking. But not as bad as I thought. -is already pass-by The provided pump is working, but not quite perfect. We also use a ball shell, which is a useful addition. Not only that the ball has a storage space and not off-rolled, but you can not sit quite as shaky sometimes, if you want.
