Nothing conducts heat more efficiently or quickly than diamonds, ensuring optimum heat transfer without hot spots...no matter what you are cooking. The precision cast aluminum cookware features stay-cool handles ergonomically designed for comfort and balance. Oven safe up to 500 degrees F. The perfectly flat extra thick base will never warp, and is ideal for use on the new ceramic, gas or electric cook tops. Vented, heat tempered glass covers offer see-though convenience to prevent boil-overs or over cooking. This breakthrough technology was awarded the gold medallion at the 1999 International Inventors Fair in Geneva, Switzerland. 12.5" Fry Pan