| By sandwiching a layer of air between two metal sheets food is protected from intense oven heat and doesn t overbake. Your pizza crust will thank you for it.Aluminum with non-stick surface 15 3/4" Diameter Patented consistent layer of protective insulating air and non-stick surface that is safe for use with metal utensils Will not rust Dishwasher safe do not immerse in water Lifetime Warranty |