Description: 【Enhance Pumping Experience】: Designed to make life easier for new moms, these duckbill valves are replacement for your M5 wearable breast pump, ensuring optimal suction and performance 【Compatibility】: These duckbill valves and membranes are specifically crafted to fit seamlessly with the M5 wearable breast pump, helping you maintain performance and milk output 【Material】: Made from silicone , these replacement part are soft, and odorless, enhancing the efficiency of your pumping sessions 【Easy Maintenance】: After each use, clean the valves and membranes with warm water and rinse thoroughly. For , boil or steam at temperatures ≤100 Celsiusfor 5-10 minutes. Avoid microwave 【Comprehensive Replacement Set】: This set includes 12 duckbill valves compatible both M5 wearable pump and V1/V2 hands pump, to meet all your replacement needs efficiently Specification:     Size Chart: 15x12x4cm/5.91inchx4.72inchx1.57inch Package Includes: 12  Duckbill Valves Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. you a wonderful on-line shopping!