The Calphalon #5005 12" 5 QT and #5003 10” 3 Quart frying skillet pans are a two-piece set made from aluminum and stainless steel. These round skillets have a 12.5” diameter and a 10.5” diameter and come in a sleek silver color. They are suitable for use on electric and gas stoves, and feature a flat-bottomed design, long handles, and dishwasher-safe convenience. The set includes lids for both pans, making them versatile for various cooking needs. Ideal for those looking for high-quality, durable cookware that is both stylish and functional for their kitchen. Thank you for looking SH