This product is a restored cast iron skillet/griddle made by either Wagner or Griswold. It has a diameter of 15 1/4 inches and is compatible with induction, electric, and gas stoves. The skillet is black and has a non-stick surface coating. It comes with a frying pan and is an original vintage piece. The brand is Griswold and it measures 21 inches in length and 16 1/2 inches in width.