Offering maximum efficiency through modern technology, the d5 line from All-Clad bonds five distinct layers in a perfect harmony of cooking performance. The cookware features a patented, three-layer aluminum and steel core that propels heat sideways, eliminating hot spots and driving through the entire pan, not just the base. This heat and the non-reactive stainless steel interior create the optimal cooking surface, and the magnetic exterior layer is well suited to induction cooktops as well as traditional gas and electric stoves. Frying pans are designed with flared sides for easy pouring, and redesigned stainless steel handles are cool, comfortable and ergonomically balanced for reduced stress when lifting.Need help choosing? View our All-Clad comparison chart.. Constructed with 5 bonded layers: proprietary stainless steel core sandwiched by two layers of aluminum with 18/10 brushed stainless steel cooking surface and exterior. Non-reactive to foods. Larger, stay-cool, cast stainless steel handles. Handles are riveted and feature holes for hanging. Oven-safe to 500 degrees. For use with traditional gas and electric and induction cooktops. Hand wash only. Not microwave-safe. Made in USA of Domestic and Imported Materials.