Photo 1 of Flange Insert 13/15/17/18/19/20/21mm 14PCS,Compatible with Momcozy S12 pro/S9 pro/S12/S9/Medela/Spectra/Bellaaby/TSRETE etc 24mm Shields/Flanges,Reduce 24mm Tunnel Down to Other Size

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Photo 1 of Flange Insert 13/15/17/18/19/20/21mm 14PCS,Compatible with Momcozy S12 pro/S9 pro/S12/S9/Medela/Spectra/Bellaaby/TSRETE etc 24mm Shields/Flanges,Reduce 24mm Tunnel Down to Other SizePhoto 2 of Flange Insert 13/15/17/18/19/20/21mm 14PCS,Compatible with Momcozy S12 pro/S9 pro/S12/S9/Medela/Spectra/Bellaaby/TSRETE etc 24mm Shields/Flanges,Reduce 24mm Tunnel Down to Other Size