Super visor Kazuka Hattori; Full 7-layer construction that transmits even heat, compatible with all heat sources; Product Size: Actual Product (22 cm) x 12.8 x 5.3 inches (32.4 x 23.8 x 13.5 cm); Product Weight: Approx. 3.9 lbs (1.7 kg); Product Material: Main unit. 7-layer steel (1 8-8 stainless steel + aluminum alloy + aluminum alloy + aluminum + magnetic stainless steel), lid, handle, knob = 18-8 stainless steel. Product Contents: 22 cm = capacity approx. 3.5 L (depth approx. 9.5 cm), single pot 7.1 inches (18 cm) = capacity approx. 0 / 200 V electromagnetic cookers