Bodymax cast iron Kettlebells are ergonomically designed to provide a comfortable grip and to enable the most effective kettlebell workout. Kettlebells are weights that can be lifted like ordinary dumbells, but can also be swung about for an intense cardio workout. With kettlebells you can have a workout in very little space that will get your heart pumping and exercise your whole body. With Bodymax cast iron kettlebells, you can combine weight training and cardio workouts with a minimum investment, and with minimum floor space. There are hundreds of exercises you can do with a kettlebell, exercising your whole body, in little space.