Durable and heat-resistant: the lid holding handles are made of bakelite and stainless steel material, durable and sturdy, heat-resistance and lightweight, easy to clean and dishwasher safe, you can also just wet cloth to clean it after Size information: each pot lid replacement knob size is approx. 6.4 cm/ 2.5 inches in diameter, 5.4 cm/ 2.1 inches in upper diameter, 3.5 cm/ 1.3 inches in length, the screw size is approx. 1.6 cm/ 0.6 inches in diameter, proper size for comfortable gripping, not easy to off Easy to install: just attach the knob and rubber gasket to the pot lid, then screws (included) to fix finish the installation in minutes, convenient for you to operate, save your time and effort Wide applications: the universal kitchen cookware lid replacement knob works at preventing the hot lids from burning your hands, suitable for kinds of cookware lids, such as kettle, oil pot, frying pot lids, saucepan lids, lids and so on Colour:Black Material:plastic Size:Diameter: 6.4cm Package Contents: 4 x Pot lid knobs ( rubber gasket and screws included) Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.