Practika Plus Pressure Cooker 3 Pieces Set 4+6 Qt Stainless SteelUPC: 894968002189 Manufacturer Part No: 010PPRAPL46 Presure Cooker Practika Plus Size Size 4. 1 Qt. + 6. 3 Qt. Preserves vitamins and minerals which are usually lost with conventional cooking methods (pressure cooking retains important water soluble vitamins and minerals lost in conventional cooking so meals are healthy and delicious) Cooking time is reduced up to 70% resulting in using less energy and saving money. Encapsulated five layer bottom