Shake Weight Women's- 2.5lb Tone Your Arms, Shoulders, & Chest All At The Same Time, Great For All Fitness Levels, Bonus Workout DVD Included GO FROM FLABBY TO FIRM - Special pulsating 2.5lb dumbbell helps shape and tone upper body! DYNAMIC INERTIA TECHNOLOGY  Ignite the muscles in arms, shoulders, and chest with the SHAKE WEIGHT! MORE EFFECTIVE EXERCISE  Help increase upper body muscle activity by 300 percent compared to regular weights. EXERCISE ANYTIME, ANWHERE  Get your workout in as little as 6 minutes per day; fits easily inside a suitcase or travel bag for on the go WORKOUT DVD INCLUDED  Full body toning DVD included to help you get started on your fitness journey! Tone your arms, shoulder, &amp; chest all at the same time! Fun &amp; easy workout! As little as 6 minutes a day! Simple exercises are great for all fitness levels! Perfect at home workout!