Photo 1 of 10PCS Flange Inserts 13/15/17/19/21mm,Compatible with Momcozy S12 Pro/M5/S9 Pro Hands-Free Breast Pump,Use for Medela/Spectra/Elvie/TSRETE/kmaier 24mm Shields/Flanges,Reduce 24mm to Other Size

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Photo 1 of 10PCS Flange Inserts 13/15/17/19/21mm,Compatible with Momcozy S12 Pro/M5/S9 Pro Hands-Free Breast Pump,Use for Medela/Spectra/Elvie/TSRETE/kmaier 24mm Shields/Flanges,Reduce 24mm to Other SizePhoto 2 of 10PCS Flange Inserts 13/15/17/19/21mm,Compatible with Momcozy S12 Pro/M5/S9 Pro Hands-Free Breast Pump,Use for Medela/Spectra/Elvie/TSRETE/kmaier 24mm Shields/Flanges,Reduce 24mm to Other Size