The Fagor 10 quart Splendid Pressure Cooker has the spring type mechanism with single pressure setting: High (15 pounds per square inch). Made of high quality 18/10 stainless steel. An automatic pressure release valve and visual pressure indicator make the Splendid extremely easy to operate. Each Fagor pressure cooker has a triple safety mechanism, a pressure control valve, and a safety lock on the handle that prevents accidental opening under pressure, plus two independent over-pressure release valves. Includes instruction manual and recipe book.