2.5mm Triply Tope with SS Lid (16cm)- 1.5 ltr- Inner SS 304, 0.4mm Thick, centre Aluminium 1.5mm thick, outside SS 430, 0.6mm thick|2.5mm Triply Saucepan with SS Lid (18cm)-2.2 ltr-Inner SS 304, 0.4mm Thick, centre Aluminium 1.5mm thick, outside SS 430, 0.6mm thick Diameter of Small Saucepan- 16 cm, Diameter of Large Saucepan- 18 cm