• This product is made of high-quality silicone

• It can replace worn or deteriorated diaphragms and valve (duckbill) in electric breast pump 

• Replacing the diaphragm and valve restores the pump's original suction power and keeps it working at peak performance

• Replace diaphragms and duckbills every few months or as needed to ensure your pump stays as good as new

Specification:

• Material: silicone

• Size: outer diameter 26mm, height 30mm, inner diameter 19mm