All Woll cookware products are hand-produced in Germany and come with a limited-lifetime warranty. Each pan has a diamond-reinforced, non-stick cooking surface which uses state-of-the-art nano and diamond technology. The result is a cooking surface which allows easy release of food and easy cleaning without the use of oils or fats. Woll non-stick surfaces are natural and PFOA free. All Woll pans are oven-, dishwasher-, and metal-utensil-safe. Woll's Concept Pro series is a line of stainless-steel cookware.