You can make major changes to your body without spending hours in the gym. By using a kettlebell and following her own eating plan. Tracy Reifkind lost 120 pounds, has kept the weight off for six years, and has helped countless other people let their real bodies break through.

The Swing! workout is:

Fast. Kettlebell training is so effective in burning claories, building muscle, and toning the body that you can see results in as little as four 30-minute workouts.

Economical. You can swing a kettlebell in your bedroom, in the living room, in the garage—almost anywhere. You'll never have to pay for another expensive gym membership.

Efficient. You get strength training, a cardio workout, and flexibility training all in a single session. It's a three-in-one workout—better than weight lifting.

Easy. Anyone can use a kettlebell. Whether you are a woman or a man, an athlete or a couch potato, slender or overweight, you can benefit from the Swing! workout.

As well as teaching you the most effective workout possible, The Swing! provides a food plan with a focus on great flavor and making sure you never go hungry. As featured in the bestselling The 4-Hour Body, Tracy Reifkind's exercise, diet, and lifestyle program harnesses the extraordinary power of kettlebells to create rapid and long-term weight loss in just four hours a month.