Flange Inserts 21mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Tunnel Down to 21 mm, 4PCS

Flange Inserts 21mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 21 mm, 4PCS

Maymom 21mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra 20mm Replace Pump Parts Spectra Flange Spectra Duckbill Valve

Nenesupply 21mm 2 pc Flanges Compatible with Spectra S2 Spectra S1 9 Plus Breastpumps Replacement to Spectra Pump Parts and Spectra Flange. Compatible with Spectra S2 Parts and Spectra 21mm