Feature 15 REPLACEMENT DUCKBILL VALVES: Baby pump valve includes 5 replacement duckbill valves for easy installation and removal. 2FOOD GRADE SILICONE: Baby duckbill valves are made of food grade silicone and can be cleaned in water steam or boiling water. 3EASY TO CLEAN: Duckbill valve kit is easy to clean, just wash with soapy water and rinse with water, and clean the fine tip with your finger. 4TRANSPARENT MATERIAL: Pump duckbill valve is made of transparent material, making it easier to see inside the valve. 5SAFE AND SOFT: Duckbill valve replacement kit is safe, soft, odorless and long lasting, which is perfect for mother and baby.SpecificationItem Type: Duckbill Valve Replacement KitMaterial: Silicone .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List5 x DuckbillValveReplacementKitNoteDo not use a hard brush for cleaning and do not use a dishwasher.