4 Piece casserole set suitable for all cooking sources, electric and gas stoves or glass and ceramic or halogen burner. Healthily preparation of food. cooking with little water and frying with little fat minimize loss of vitamins, minerals and flavour. Especially suited for diet menus as food does not have to be salted. Handles will not heat up. Practical and attractive. No corners to gather food and fat particles. Easy to clean.