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Shake Weight is a new workout tool that combines velocity and dynamic inertia with a dumbbell. Shake Weight dramatically increases muscle activity and is 7 times more effective than standard dumbbells. In just 6 minutes with shake weight you can achieve a muscle burning workout that would take 42 minutes with regular weights.
Shake Weight weighs only 5 lbs and its unique design can make your muscles contract up to 240 times per minute. Shake Weight enables you to work your Chest, Biceps, Triceps and Shoulders in just 6 minutes a day. Shake Weight comes with a free Upper Body Sculpting workout DVD.