Shake Weight Dumbbell Special pulsating dumbbell for shaping and toning upper body Dynamic Inertia technology ignites muscles in arms, shoulders, and chest Increase upper body muscle activity by 300 percent compared to regular weights Works in only 6 minutes per day; fits easily inside a suitcase or travel bag Comes with upper body toning DVD [...]Post from: Fitness EquipmentShake Weight Dumbbell
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