M'Heritage Tri-Ply Roaster and Rack: Roaster and rack from the M'heritage collection Bilaminated copper and stainless steel construction with 90% to 10% composition, respectively Polished 1.5 millimeter thick copper exterior and non-reactive 18/10 stainless steel interior Heats more evenly, much faster than other metals and offers superior cooking control Handle fixed secured with stainless steel rivets Suitable for gas, electric, halogen cooktops and the oven Measurements: 15.75" W x 11.75" D" material="Copper, stainless steel" origin="France"