Durable and heat-resistant: the pan lid handles are made of bakelite and stainless steel material, durable and sturdy, heat-resistant and lightweight, easy to clean and dishwasher safe. You can also use a wet cloth to clean it after use. Size information: each pot lid replacement knob size is approximately 6.4 cm (2.5 inches) in base diameter, 5.4 cm (2.1 inches) in upper diameter, 3.5 cm (1.3 inches) in total length. The screw size is approximately 1.6 cm (0.6 inches) in diameter. Proper size for comfortable gripping and secure fit. Easy to install: just attach the knob and rubber gasket to the pot lid, then use the included screws to fix them in place. Installation is quick and convenient, saving time and effort. Wide applications: these universal kitchen cookware lid replacement knobs help prevent hot lids from burning your hands. Suitable for most types of cookware lids, including kettles, oil pots, frying pans, pots, saucepans, and more. Material: plastic Size: Diameter: 6.4 cm Package Contents: 4 x Pot lid knobs (compatible rubber gasket and screws included). The listed package content includes only the accessories; cookware products are not included. Note: Lighting and display settings may cause slight color variations between the item and the image. Measurement allowance is +/- 1-3 cm.