OLL's Diamond Lite Cookware is made in Germany and features a 5-layer design for enhanced longevity: a diamond reinforced top coat, a long-lasting nonstick base coat, a unique anti-corrosion layer, a cut-resistant base layer, and sandblasted aluminum. The durable top coat cooks and cleans with ease and delivers excellent heat retention for efficient heating and even browning. WOLL QUALITY: Since 1979, WOLL has been producing high-end, diamond reinforced nonstick cookware exclusively in Germany. Now in its second generation of family ownership, WOLL uses state-of-the-art technology to provide the highest quality cast cookware.