Duckbill Valve 1/2/5pcs For Breast Pump Backflow Protection - Manual/electric. Enhance Your Breastfeeding Experience with Our High-quality Silicone Breast Pump Accessories. Designed for Versatility, These Duckbill Valves Feature Backflow Protection to Ensure a Seamless and Hygienic Pumping Process. Each Piece is Made with Premium Silicone, Free from High-concern Chemicals, Ensuring Safety for Both Mother and Baby. Perfect for Various Age Ranges, Including Maternity and Up to 36 Months, These Accessories Are a Must-have for Nursing Mothers. Product Details: - Item Type: Breast Pump Accessories - Material: Silicone - Features: Backflow Protection - Product Dimensions: 2.90 X 2.30 X 3.35 Cm / 1.14 X 0.91 X 1.32 Inches - Package Content: Available in Packs of 1 or 5 Duckbill Valves Please Be Aware That Slight Color Variations May Occur Due to Different Monitor Settings, and Allow for a 1-3mm Difference in Size Due to Manual Measurement..