Specification: Item Type: Pot Lid Knob Material: Phenolic Plastic Weight: Approx. 28g/1oz Knob Size: Approx. 4 x 2.5cm/1.6 x 1in Base Diameter: Approx. 4.5cm/1.8in Installation Aperture: Approx. 6mm/0.24in Color: Black Installation: Can be installed with 5mm screws and washers (not included) Package List:4 x Pot Lid Knob Features Made of high‑quality phenolic plastic material, high temperature and high friction resistance, insulation, strong and durable. The unique design makes it easy and comfortable to hold, and can prevent the hot cover from scalding your hands. Easy to install, correctly place the knobs, rubber washers and metal washers, and tighten them with screws (screws and washers are not included). Our knob is suitable for the 6mm mounting hole of the cover, which is easy to clean and can be cleaned with a damp cloth after use. A large number of worn or old knobs can be replaced, suitable for all kinds of cookware lids, such as pot lids, pan lids, soup pot lids, etc.