We proved cooking on diamonds is better, now discover the difference hard anodized aluminum can make Blue Diamond Hard Anodized combines unbelievable strength and durability with our signature coating for professional-grade results. This set is 11 times harder than classic Blue Diamond pans and lasts 2 times longer. Still metal utensil safe, this set features our signature ceramic nonstick coating for effortless cooking results. This set's durable glass lids offer easy food monitoring and are oven safe up to 425°F. Riveted stainless steel handles offer a sturdy and secure grip. Dishwasher safe. Oven and broiler safe up to 600 degree Fahrenheit.