The Haakaa Silicone Breast Pump Cap fits securely over the top of your Haakaa Breast Pump, protecting it from accidental spills and keeping your precious breast milk safe! Made from 100% food grade silicone. Features: -Made from 100% food grade silicone. -Leak-proof design to prevent spills. -Seals your pump to keep it clean and hygienic between uses. -Fits all Haakaa Silicone Breast Pumps. -Safe in dishwashers and boiling water. -BPA, PVC and phthalate-free