Tri ply cookware for superior conductivity with oven safe brass effect handlesnaluminium sandwiched between two layers of stainless steel helps conduct heat quickly across the whole panndishwasher safe with liquid detergents only otherwise hand wash recommendednwith metal lids without vents to help retain moisture and raise the temperature inside the pan dimensions 16cm diametern18cm diametern20cm diameter item details set of 3 saucepans suitable for induction hobs these are dishwasher s