• Ergonomic design to effectively support your lower back
• Perfect for use in the office or in the car.
• Option 1: Double motors operate on 2 "D" batteries (included) or with an A/C adaptor (sold separately) to be used anywhere.
  
• 2 vibrating modes (high or low) to fit your needs.
• Option 2: Single motor operates on car cigarette plug to be used in car only
• Measures 14.5" x 5" x 12.5"