The pans feature unique Hi-Low wave technology that reduces abrasion. This improves the durability of the nonstick without trapping food. /With Autograph the most advanced 3-layer nonstick from Dupont, this cookware is safe to use with metal utensils. These unique grooves coupled with the most advanced 3-layer nonstick means your pans will provide a lifetime of performance - guaranteed. Heavy-gauge hard anodized construction is exceptionally durable and distributes head beautifully - meaning no hot spots that can burn food. Comfortable silicone and stainless steel handles are double riveted for extra strength and are oven safe to 400-Degree F. Plus, a fold-out ring allows for convenient hanging. A unique straining lid allows you to safely strain both large and small foods. Lifetime Customer Satisfaction - Guaranteed.