Ilsa Set of 3 Cast Iron Heat Diffusers (5.5-Inch, 7-Inch, 8.25-Inch) Heat diffusers; they eliminates unwanted hot spots Made of cast iron; evens your electric or gas burners heat surface Have the benefits of cooking with cast iron without the care and excessive weight of cast iron cookware Includes stainless steel handles for safety and convenience 5.5-Inch, 7-Inch and 8.25-Inch Diameter