This enamelled cast iron heat diffuser with removable handle is 8.25 inches in diameter. Place the diffuser between a heat source and sauce pan to protect cookware and distribute the heat in a uniform and constant manner. It also eliminates the need to mix foods because when in use, foods neither burn nor stick. It is suitable for all types of pots and pans, fits all burners, and is ideal for pans lacking a double radiant bottom, and it is indispensable for pyrex and terracotta. Made in Italy.