Vibration Plate Material:Glass fiber reinforced plastics,Steel, Plastic Motor Power: 300W or 500W Speed range:0-15 levels Vibration PlateMaterial: ... Glass fiber reinforced plastics,Steel, PlasticMotor Power: 300W or 500WSpeed range:5 ... levels,10levels,15levels (the max 20levels)Input Power: 300WAmplitude: 0-13mmFrequency: 0-18rmp/sMax user weight: ...