This Roykka Cooper Collection Pan set is crafted from 3 materials that work together providing ultimate performance as well as looking stylish. The solid copper outer gives exceptional heat conductivity and thermal control, the aluminium core ensures even heat distribution in all areas of the pan, whilst the cast stainless steel interior is built for high durability. The set includes pans and lids of diameters 16/18/20cm which are metal utensil safe and have a 360 degree all round pouring rim. The pans are suitable for Solid Plate, Electric/Radiant Ring, Ceramic/Halogen and Gas Hobs, as well as being oven safe to 220 degrees. The set is also dishwasher safe for easy cleaning.