Features: 1.100% brand new and super high quality. 2. Resistance high temperature, resistance corrosion, safe and durable. 3. Easy to install and attach with pressure cooker, comfortable to use. 4. Can instead, replace the damaged or old, and reduce your expenses. 5. Please check the size information before placing an order. Characterization: Material:Plastic Color:As the picture show Hole Diameter: Small: 1.5cm/0.59 inch Medium: 1.7cm/0.67 inch Large: 1.9cm/0.75 inch In the package: 1 X Cooker Lids Knob Note: 1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.