A wide base for better counter stability. Exceptionally quiet motor, Economy price. Vibration range from ultra low to maximum intensity. Heavy Duty Type Specifications: Power supply: 110 V / 230 V ( 50 / 60 Hz ) Vibration plate: 235 x 235 mm Dimension: W 235 x D 235 x H 110 mm Weight: 6 kgs Junior Type Specifications: Power supply: 110 V / 230 V ( 50 / 60 Hz ) Consumption power: 1st step 60 W 2nd step 80 W 3rd step 150 W Dimension: W 110 x D 120 x H 115 mm Vibration plate: 110 mm