This is a professional and practical pressure cooker lid knob. Comfortable to hold, easy to install and easy to disassemble. It can prevent the hot cover from scalding your hands, explosion-proof, corrosion-resistant, not easy to rust, bringing you a lot of convenience and comfortable use.Features- Color: Black.- Material: Plastic.- Size: 7.50X7.50X3.50cm/2.95X2.95X1.38in.- Application: It is suitable for pressure cooker cover with a hole of 15mm aperture.- Made of plastic material, this pressure cooker lid handle is practical, durable and can stand up to long-term use.- It can prevent the hot cover from scalding your hands, explosion-proof, corrosion-resistant and not easy to rust.- Comfortable to hold, easy to install and easy to disassemble, saving you time and energy.- These new and beautiful knobs can make your pressure cooker lid more unique and attractive without spoiling the overall aesthetics.- An excellent accessory for pot lids, fine workmanship, not easily deformed or damaged.Packing list: 4 x pressure cooker cover knobs