Kila Chef Tri-Ply Copper Bottom Saute Pan with Lid New design - 11" tri-ply copper bottom saut pan for gourmet cooking Straight side, stainless steel interior cleans easily Extra thick 3.5 Mm with 1.5Mm copper for durable heavy use Ergonomic handle with stainless steel rivets Copper bottom, aluminum core, and stainless steel interior extend around sides