Wok features a multi-layered construction with 18/10 stainless steel on the interior, three layers of aluminum on the inside for wonderful heat conduction and an 18/10 polished stainless steel on the exterior with 18/0 stainless on the bottom for induction cooking. Wok with 2.6 mm total thickness also has cast stainless steel cool handle is fixed with sturdy stainless steel rivets. Can be used on gas, electric, halogen, induction and oven. Dishwasher safe. Limited lifetime warranty.