Dishwasher safe porcelain enamel over thick aluminum for quick and even heating. Riveted handles last a lifetime. Tempered glass lids. Oven safe to 350 F. DuPont Scratchguard Ultra for a lifetime of easy clean up and release. NSF certified. Set includes: 1 qt cov saucepan, 2qt cov saucepan, 3qt cov saucepan, 6qt cov stockpot, 4qt saute, 8" skillet, 10" skillet, 12" skillet, (2) 9x13" cookie sheets. Lifetime LMW. Choice of colors. Imported.