WMF Perfect Plus 6.5 Qt and 3 Qt Pressure Cookers set with Interchangeable Locking Lid 6-1/2- and 3-liter pressure cookers with lid that fits both pots Heavy-gauge 18/10-stainless-steel construction with TransTherm bases Black, phenolic, ergonomically designed handles stay cool to the touch Interchangeable lid provides advanced safety features and audible alarm Dishwasher-safe with lid handle removed; suitable for all cooktops, including induction