About this item: This set of duckbill valves is designed for seamless compatibility with Momcozy M5 hands-free breast pumps. Made from durable, food-grade silicone, these valves ensure a leak-free experience while preventing back-flow of breast milk. Return and exchange policies: 1. Non - Returnable 2. Exchangeable in case of product damage or if the product is expired (Terms and Conditions applied) Terms & Conditions: 1. The product should not be opened 2. Image of the product with the invoice must be provided 3. Any Complaint should be raised within 8hrs of delivery