1.201 Stainless Steel material, body thickness 0.5mm, 2.Bottom with 0.5mm alu+1.5mm iron+0.5mm alu. 3.Stainless steel wire handle and knob, with welding. 4.0.5mm flat stainless steel cover, with mirror polish. 5.body Inside mirror polish, outside 1/4 mirror polish,3/4 stain polish. Saucepan:16×9.5cm with lid Casserole:16×9.5cm with lid 18×10.5cm with lid 20×11.5cm with lid 24×13.5cm with lid Frypan: 24×6.5cm with lid