Bonding durable stainless steel and conductive aluminum, D5 optimally combines the individual qualitites of both metals to increase heat transfer efficiency through each alternating layer for superior culinary results. These 8.5 inch and 10.5 inch deep skillets feature tall sloped sides that help with turning and flipping, and the extra depth makes way for larger food while minimizing spatters. The oven-safe pans also work well for pan roasting.