BonJour Copper Clad 4-Quart Covered Dutch Oven 4 quart copper clad covered dutch oven; straight sides allow liquid after searing meats 2.6 mm total thickness; 5-ply clad construction; Interior layer-0.4mm 18/10 stainless steel; bonding layer-0.3mm aluminum; core-1.0mm copper; bonding layer-0.3mm aluminum; exterior layer-0.6mm magnitized steel Thermo-Enhanced Base is 44% thicker than traditional copper core cookware providing superior heat distribution and control Dishwasher and oven safe. Suitable for use on all stove tops, including induction ranges Commercially approved and featured at the Eiffel Tower Restaurant