This 12″ (30 cm) skillet has Tri-Ply Clad construction with an aluminum core sandwiched between 2 stainless steel layers. Safe for all cooktops and oven, broiler, and dishwasher safe. Also included is a tempered glass lid which lets you watch food cook. Want to learn more about Pampered Chef® products? Let a Consultant be your guide! They’ll share the products, recipes and tips that make cooking and entertaining so much easier.