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.