3. The screws are easy to fix, just put the knob,rubber gasket and metal gasket correctly,and then use screws to . 4. It is also easy to clean, after using it, you could use wet cloth to clean it. 1. Pot Lid Knobs Fits to replace the or broken ones are an perfect replacement.It's comfortable to , simple and easy to install. 2. Made of high- bakelite, high temperature resistant, high friction resistant, dishwasher safe, insulating, anti-rust, sturdy and durable. The plastic knob Heat-resistant can prevent your hand from injured. 5. The pot replacement knob is suitable for covers, such as kettles, oil pans, frying pans, , replace destroyed knobs, comfortable to hold, easy to use.