Shake Weight 5 LB Pound Men's Dumbbell Body Sculpting System with Free Training Workout DVD -New Dynamic Inertia Technology - Home, Sport & Gym Fitness - LifeModeler Technology used by NASA - High Intensity - Equal to a 65LB Dumbbell (As Seen On TV)
The Shake Weight for Men utilizes new workout technology called Dynamic Inertia that increases muscle activity by more than 300 percent compared to traditional weights. Use the revolutionary Shake Weight for Men to shape and tone arms.
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