Duossal pans are two materials in one, pressed together under high pressure. Aluminum on the outside for good thermal conductivity, and stainless steel on the inside to make the pans scratch-resistant and hygienic. Stove comes with 2 Duossal saucepans, 1.75 liter and 1.5 liter, 1 Duossal fry pan, 22 cm. Weight: 2.65 lbs