Sits tight in the neck of your Haakaa breast pump and will stop any spills or accidents.
Made from 100% silicone.
Fits in both 4 oz (100 ml) and 5 oz (150 ml) size breast pump.
Clean after each use. This product can be sterilized with any steam sterilizing system or boiling water.
No bleach based agents.
Caution: Small parts. Not for babies to chew on. Keep way from babies and young kids.