Yes, that was cast iron
Yes, I was referring to the cast iron grills/griddles that are placed on the stove burners. I once had an indoor electric grill and it was a joke. It never got hot enough. But I'm sure Goodwill made some money from it.
How well do stove top grills work on electic burners? Are cast iron grills better than non-stick? (Cleaning is not an issue) Are there specific brands that you would recommend or other features to look for?