Why KettleBells and the KettleWorx Program? A complete Fitness Program includes three critical elements...Core, Cardio and Resistance training. With other workout programs, you might get your Cardio on one machine, your Core on another, and then do circuit training for Resistance...close to 90 Minutes of working out! Who has that kind of time? That's why KettleWorx works so well. The secret behind the KettleWorx program is that it uses a KettleBell to turn your body into the ultimate fitness machine, moving it in 3-dimensions like nature intended. You're working all your muscles at once, which gives you Total Body Fitness...Cardio, Core and Resistance Training all in 20-Minutes 3 times a week. That's only 1 Hour a Week...imagine the time-savings! KettleWorx is the Complete Package KettleWorx is the global leader in KettleBell Fitness and offers a complete KettleBell training program on DVD for home use. Designed to emulate a true personal trainer experience, KettleWorx is appropriate for men and women of any age and fitness level. Users are led through a series of gradually more challenging workouts that comprise the "Six Week Body Transformation". The complete KettleWorx Ultra system includes 10 DVDs, training in 200 unique exercises, over 12 hours of personalized KettleBell instruction, a healthy eating guide, and a 5, 10, 15 or 20 pound KettleWorx KettleBell. And the best part...KettleWorx delivers real results. Follow the KettleWorx program for 20 Minutes 3 x a Week, and in six short weeks you WILL see changes to your body. Selecting the Best Kettlebell Weight We recommend that most new kettlebell users start with a 5 LB or 10 LB kettlebell. PLEASE NOTE: The KettleWorx program is specifically designed to produce the best results when using kettlebells not over 20 pounds.