Features: Promote blood circulation and body metabolism Applicable to the physiotherapy for all parts of body Release muscle from tiredness and the pain of nerve Intensity adjustable Two-speed power switch Packing: 20 pieces/each carton, carton size: 57 x 46 x 44cm Net weight: 24kg Gross weight: 25kg 5,000 pieces/20-foot container, 10,700 pieces/40-foot container