Swiss Diamond cookware features a revolutionary new diamond reinforced non-stick cooking surface that provides optimum non-stick performance, durability and easy clean up. This cookware is also PFOA Free for healthy cooking. The secret behind this advanced cookware technology is the result of combining diamond crystals with a non-stick nano composite to form a virtually indestructible non-stick cooking surface. Made in Switzerland, Lifetime Warranty. Safe for use with metal utensils!