Features: Enhances your pumping experience with our quality silicone duckbill valves. Crafted from durable material, the duckbill flange ensures long lasting functionality. Suitable for individuals who use breast pumps to efficiently express milk. Whether at home or during daily activities, our duckbill flange is essential accessory for convenient pumping. Experience peace of mind that our duckbill valves is suitable for most popular breast pump brands. Specifications: Material: silicone Package Includes: 1xDuckbill Valves note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.