Woll produces high-end diamond and titanium nonstick coated cookware exclusively in Germany. In its second generation of family ownership, Woll uses state-of-the-art technology to provide extraordinary cast cookware. Woll provides high quality tempered glass with stainless steel rim lids to fit your cookware. Each lid features a vented lid knob. These lids are extremely light and break-resistant. Dishwasher safe and oven safe to 500 DegreeF.