Feature:1. Kit: Replacement parts set contains 10pcs for M5 breastpump replacement parts, including 6pcs duckbill valves and 4pcs silicone diaphragms, which provides sufficient spare parts for more convenient and lasting use, non original parts.2. Compatible: The duckbill valves and silicone membrane have the same suction power as the original pump parts, which can be completely compatible with the for M5, avoiding the problem of valve head gaps, so that your breastpump will always be in the great condition.3. Closed System Design: The silicone duckbill valve is specially designed to effectively prevent backflow of breastmilk and assist in draining breastmilk to the bottom of the container, keeping suction power unaffected. The diaphragm is manufactured in strict accordance with professional standards and has a greater adsorption strength to draw out breastmilk more fully.4. Material: Breastpump replacement parts for M5 are made of food grade silicone, which has strong durability, no leakage, no odour, safe and secure, and is very skin friendly for both mother and baby. The soft and comfortable material is designed to fit the breasts effectively and can suck milk efficiently.5. Easy to Clean: Wash and rinse well with warm soapy water after each use. You can choose to use boiling water or steam for cleaning, but the temperature should not exceed 100 (212) for 5-10 minutes. Hard bristle brush is not recommended.Specification:Item Type: Breastpumps Parts for M5Material: Silicone.Package List:6 x Duckbill Valves4 x Diaphragms