The FIRM Cardio Sculpting Balls will chisel and tone your body with astonishing results in half the time. High-energy, high-intensity and high-fat burn—it's all there! Use specially-designed cardio sculpting balls to fire up your metabolism with added resistance for body-shaping results. Two 2-lb. Cardio Sculpting Balls (or small hand weights) is all you need for the 3 unique workouts on this 1 DVD: Cardio Core Fusion, Cardio ABsession and Burn, Shape and Tone.