Spectifications:

• Men Shake Weight:
• This package includes a FREE DVD

• • Weight: 5lb
  • Efficiently builds the size, strength & definition on your entire upper body
  • Pumps-up muscle instantly while increasing the size

• Muscle parts that can be targeted:
  • Chest
  • Triceps
  • Biceps
  • Shoulders
• Muscle contracts up to 240 times per minute
• NO motor or batteries required
• Revolutionary new way to tone and shape your entire upper body
• Only 6 minute a day to see results while burning calories with rapid results
• 

• The Shake Weight dumbbell is based on a completely new workout technology called Dynamic Inertia, which ignites the muscles in your arm, shoulders, and chest. As you hold the Shake Weight, it pulsates back and forth, challenging your muscles while you hold it steady.

  See this video to find out why Shake Weight is not a normal Dumbbell