Tognana introduces Pure Roq cookware and bakeware. The Pure Roq Collection is made to last and features 4 layers of aluminum that are pressed carbon steel reinforced with hard mineral particles that is resistant to high heat. The non-stick properties are PFOA, nickel free and toxin free. The non-stick coating is anti-scratch and durable to withstand metal utensils. Pure Roq gives strength and purity for a natural cuisine and healthier cooking that helps preserve the flavor of the food. Spring Form Pan measures 9" diameter. Oven safe to 500 degrees F.