The body and lid are made from superior grade AISI 304 non-magnetic stainless steel. The cooker has an external base of AISI 430 grade magnetic stainless steel which makes it induction compatible. It has a 6.6 mm thick sandwich bottom to ensure uniform heating and no hotspots. The base always stays flat and never bulges. The cooker body has curved sides for easy stirring. It stays bright, does not pit or corrode, is extremely hygienic and stays looking new for years. Suitable for use on all domestic gas, electric, halogen, ceramic and induction cooktops.