Outer body made of Mild steel duly painted / powder coated. Heavy duty cast iron top. Fitted with Energy Control. Available in round and rectangular top in the following sizes:1) Hot Plate (Round) Diameter 8" inch2) Hot Plate (Rectangular) 10"x12"3) Hot Plate (Rectangular) 10"x16"4) Hot Plate (Rectangular) 12"x18"5) Hot Plate (Rectangular) 18"x24"