Virgin aluminum used by Ballarini, is 9 times better conductor of heat than steel. Heat is distributed quickly and uniformly on Ballarini pans. All coatings applied to Ballarini pans are PFOA, heavy metal and nickel free. Click and Cook ,that enables you to reduce the space taken up by pans and lids to store better, Save 80-Percent space. Healthy low-oil cooking. It is keravis non stick coating. Made in Italy. Size 16cms.