Small silicone flanges need extra support to seat correctly. These Pumpin Pal collar rings act as adapters for the 2XS, XS and Small silicone angled flanges.
Medium, Large and XL hard plastic flanges do not use them. They are not Spectra adapters.
Features
Material: Hard plastic
Compatibility: Pumpin Pal silicone angled flanges in 2XS, XS, Small
Not compatible with: Medium, Large, XL hard plastic flanges; not Spectra adapters
