Cast iron heat diffuser when placed between the heat source and saucepan, eliminates the need to mix foods while cooking because it distributes the heat in a uniform and constant manner. When in use, foods neither burn nor stick. Also prevents the external blackening caused by flame on gas stoves. Suitable for all types fo pots and pans, fits all burners and is ideal for pans lacking a double radiant bottom, perfect for Pyrex and Terracotta. Includes a removable handle. Approximately 7" diameter. Made in Italy and known as Piastra radiante in ghisa smaltata.