For over 25 years, The Firm has believed that strength training combined with aerobics yields better results than either alone. You burn fat through the aerobic portion of your workout, while you build muscle that increases your body's natural fat-burning mechanism. Toning plus calorie burning produces total-body results.

The Core Stability Ball is the perfect way to benefit from this balanced approach to fitness. So while you're working out with The Firm Slim & Sculpt Stability Ball DVD, muscles you rarely use are quietly working to keep you on the ball. The result is a firm, flat abdominal region and an all-over better tone. The Firm Core Stability Ball comes with its own easy-to-use pump. Use it to inflate the ball. And get a better workout, all the way around.