Berndes 15-piece tradition cookware set Tradition cast aluminum nonstick cookware set, vacuum pressure state of the art manufacturing process, casting forms a solid cavity for a perfect cooking vessel inside and outside Cooking surface is finished with triple layer exterior with a double layer of dupont autograph 2 gourmet nonstick Pyrex high dome lids are heat resistent; ergonomically designed, distinctive natural wood handle (ash) Cookware set can be used on the following cooking surfaces: gas, electric, glass ceramic and halogen Made in germany