Specification: Color: translucent Material: silicone Product Size: duckbill valves diameter 0.87x1.3in/2.2x3.3cm, silicone diaphragms diameter 2.17x1.38in/5.5x3.5cm Package details: 4 x duckbill valves 2 x silicone diaphragms Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between different monitors, there may be a slight color difference existed.