1. Hygienic material: The duckbill valve is made of food-grade organic silicon material, which will not strain breast milk.
2. Wide range of applications: Inner diameter 20mm/0.79 in, outer diameter 25mm/0.98 in, as long as the inner diameter is suitable for your breast pump, it is suitable for most breast pumps on the market.
3. Anti-deformation design: The air check valve can effectively absorb breast milk at the set frequency of the intelligent host.
4. Durable: It is durable, long time to use.
5. Cleaning: It is recommended to clean before and after each use.