| Product Description Anti-Colic Valve (2 pieces) The MAM Anti-Colic valve constantly controls the flow of air into the bottle by reacting to the demands made by the baby. This is key to preventing colic in babies. Please replace the valve if cracks appear or if the bottle leaks, to ensure proper functioning of bottle. Except when self sterilising, please remove the valve from the base during sterilisation and leave valve to cool before fixing to base to avoid shape distortion. |