Heavy gauge aluminum construction our durable ever-versatile large frying pan design Grooved bands on the bottom distribute heat evenly for more consistent cooking results Water-based nontoxic PFOA-free non-stick hydrozoan coating for easy food release Heavy gauge aluminum ...Heavy gauge aluminum construction our durable ever-versatile large frying pan design Grooved bands on the bottom distribute heat evenly for more consistent cooking results Water-based nontoxic PFOA-free non-stick hydrozoan coating for easy food release Heavy gauge aluminum construction; our durable, ever-versatile large frying pan design. Grooved bands on the bottom distribute heat evenly for more consistent cooking results. Water-based, nontoxic PFOA-free non-stick Hydrozoan coating for easy food release.