Power Supply: 220V/110V 50/60Hz Power Consumption: 550W Rotational Speed: 2,800RPM Water Pressure: 0.5~2kg Disc Size: 25.5/2.55/0.65cm (OD/ID/T) Disc Materials: Corundum/Diamond Water Supply Method: Manual N.W./G.W.: 21/23kg Size: 55*42*42cm