Our Oster® Pressure Cooker has 5 safety systems for greater consumer reliability. It is made of durable and lightweight aluminum for efficient cooking. Includes an airtight lid with a heavy, reinforced seal. Enjoy while you cook safely in our pressure cooker! 4.2 liter, 7 liter and 9 liter capacity Double handle for a more comfortable and safe handling 2-in-1 system allows pressure release through steam outlet and internal safety lock Valve that controls pressure by automatically releasing it and indicating operating condition Includes: 2 additional safety valves Auxiliary handle allows comfortable and safe handling Made of durable and lightweight aluminum for efficient cooking Includes an airtight lid with heavy and reinforced seal