Durable and heat resistant: the pot lid is made of bakelite and stainless steel, durable and sturdy, heat resistant and lightweight, easy to clean and dishwasher safe, you can also use a damp cloth to clean it after useSize information: each pot lid replacement knob size is about 6.4cm/2.5in in base diameter, 5.4cm/2 .1 inch in top diameter, 3.5 cm / 1.3 inch in total length, screw size is about 1.6 cm / 0.6 inch in diameter, suitable size for comfortable grip, not easy to fall offEasy to install: just attach the knob and rubber gasket to the pot lid, then use screws (included) to fix them, complete the installation in minutes , convenient for you to use, save your time and effort Wide Applications: Universal cookware lid replacement knob works well to prevent hot lids from burning your hands, suitable for most types of cookware lids, such as kettle, stock pot, pan, pot lids, etc. your: Material: plasticSize: Diameter: 6.4cmPackage Contents: 4 x Pot Lid Knobs (compatible rubber gasket and screws included) The above package contents, products are not included. Note: Different shooting and displays may cause the color of the item in the picture a little different from the real thing. The measurement error allowed is +/- 1-3cm.