Features: Adopting advanced exhaust technology to ensuring timely release of excess steam during cooking and prevent food spillage. Easy to install, none need for professional tools, simply replace to restores the best performances of the rice cooker. Make of food grade plastic, it is wear-resistant, heat-resistant and deformation resistant, ensuring that it remain in good condition even after long-term use. The exhaust valves of the rice cooker is designed to be simple, easy to disassemble and clean. Daily maintenance only requires rinsing with water to maintain cleanliness. Three models of large, mediums and small are available, suitable for various types of rice cookers. Specifications: Component: Plastic Type: Small/mediums/Large Small Size: about 4.3x3.9cm/1.69x1.54inch mediums Size: about 4.9x4.45cm/1.93x1.75inch Large Size: about 5.55x5.35cm/2.19x2.11inch Package Includes: 10Pcs Electric Pressure Cooker Exhaust valves note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.