Vinaroz Valencia series 12-inch non stick marble coating aluminum frying pan and shallow pot is durable, reliable, and stain resistant and breeze to clean. These pans are coated with non stick marble coating for the interior and the exterior with spiral bottom for even heat distribution. Our warranty for this type of cookware is 25-year. This warranty does not include damage caused by accident, misuse, abuse from commercial use. Country of origin is China.