Stainless steel 3-layer thickened pressure cookerproduct manual:High efficiency:This type of pressure cooker works quickly, which means that even if you go home from work at night, you can quickly enjoy a delicious dinner. Easy to clean:It has safety handles on both sides (main handle + auxiliary ear) for easy operation. Dishwasher safety (removal of the seal and overpressure ) makes it easy to clean and reduces the amount of work after meals