Stainless Steel Pressure Cooker - Stone Interior - 4, 6, and 8 Liters Pressure cooker with stone interior for non-stick cooking that is healthier and suitable for all types of heat sources: gas, electric, induction, ceramic, and dishwasher safe. Ergonomic handle The handles are designed to fit your palm and improve grip for comfortable handling. Easy opening/closing Turning the handle on top of the pressure cooker is so convenient, making it easier to release and lock the pressure cooker lid. When the pressure cooker is locked, the red safety valve on the handle will be visible. This way, the pressure cooker is ensured to keep all the steam and pressure inside properly. The pressure cooker has a cooking level indicator.