Professional cooks can attest that copper cookware is an essential part of every cookware collection as it is 2X more conductive than aluminum and 10X more conductive than stainless steel. This 10.2” diameter frypan is made of 90% copper and 10% 18/10 stainless steel. Suitable for most stovetops, oven-safe. Features a long, cast-stainless-steel, riveted handle that stays cool to the touch on the stovetop and a secure-fitting lid with loop handle that helps trap heat, moisture, and nutrients. Hand wash to clean. 10.2" diameter; limited lifetime warranty. Made in France by Mauviel.