Made of plastic, stainless steel material for longtime use. The pressure cooker Exhaust Valves is easy to use and small and lightweight. The good workmanship will give you an excellent use experience. Features -Color:Black -Material:Plastic, stainless steel -Size:4.60X3.40X2.00cm/1.81X1.34X0.79in - The exhaust valve core are designed to release pressure and prevent accidents, very useful for cooking in your kitchen. - Easy to clean and maintain, this cooker valve can save your time and your effort, give you more convenience. - A must-have accessory for electric pressure cookers, can make your cooking more convenient and enjoyable, useful. - This pressure cooker relief is a convenient replacement solution for electric pressure cooker accessories, saving effort. - Made of plastic, stainless steel, ensuring safety and durability of using this valve tools, can longtime used. Package list: 9 x Exhaust Valves