What is this?Widely used in kinds of cookware pot lid covers, such as kettle covers, pan, saucepan lids, pot lids, glass lid pot, etc.What will I get?Package: 2 x Pot Lid Cover Knob; Material: PF.Base Diameter: 55mm/2.16inch; Top Diameter: 45mm/1.77inch; Height: 33mm/1.26inch.Is there any advantages of the product?PF material pot lid knob can withstand high temperature, anti-rust, come with fixing screw.How to use it?Suitable for most pot lids to replace your old pan cover knobs, easy to install and clean, stable and durable.What should I notice?Note: Please confirm the type and the size before you buy