Made of highly polished 18/10 stainless steel and is suitable for all heat sources, including induction. The cookware set has tempered glass lids with a silicone edge improving the connection between lid and cook pot and ergonomically shaped stainless steel handles. Each cook pot has a measurement scale inside and a 3 mm aluminium base for optimal heat distribution and energy efficiency. Dishwasher safe. 1.5 litres/16 cm, 1.5 litres/16 cm, 3 litres/20 cm and 5 litres 24 cm.