Heavy-Gauge aluminum construction in a beautiful?? dark gray hard anodized finish has superior durability and provides even heat distribution</br>PFOA-Free Teflon platinum nonstick coating for maximum performance?? easy release and clean up</br>Heat- and shatter-resistant glass lids with stainless steel rims and ergonomically designed cast stainless steel riveted handles</br>NSF-Certified and compatible with gas?? electric and ceramic glass cooktop