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 use wet cloth to clean it after use Size information: each pot lid replacement knob size is . 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 length, the screw size is . 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 use 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 from burning your hands, suitable for most kinds of cookware , such as kettle, oil pot, frying , pot , saucepan , and so on Colour:Black Material:plastic Size:Diameter: 6.4cm Package Contents: 4 x Pot lid knobs (compatible rubber gasket and screws included) Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.