Overview Compatibility: Specifically designed for Momcozy M5 wearable breast pump models, ensuring perfect fit and functionality. Material Quality: Made from high-grade silicone, offering durability, flexibility, and skin-safe use. Functionality: Essential replacement parts (duckbill valves, diaphragms, flanges) to maintain pump efficiency and hygiene. Versatility: Multiple configuration options (individual parts or sets) for customized user needs. Specifications Material: Silicone Product Types: Duckbill valves, diaphragms, short flanges (sizes: 13#, 15#, 17#, 19#, 21#) Packaging: OPP bags or boxed sets (e.g., 4 diaphragms + 6 valves, 8 valves + 4 diaphragms) Compatibility: Momcozy M5 breast pump models Packing List breast pump accessory parts1 (varies by selected SKU, e.g., duckbill valves, diaphragms, flanges) OPP bag1 (or box if boxed set)