Title: A stability ball book should have more exercises actually on the ball
Product review: As indicated by my review title, I didn't like this book. I ordered it and once I saw it I immediately returned it. About half the exercises are "on" the ball while the others are exercises simply holding the ball or putting it between the legs. It doesn't seem to take advantage of the instability or range of motion that the ball allows. The exercises may be effective but I didn't want a book where I could easily perform the exercises without the ball.
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