Maymom Flange Insert 21 mm Compatible with Medela and Spectra 24 mm Shields/Flanges. Use with Medela Freestyle and Momcozy S9/S11/S12 to Reduce Nipple Tunnel Down to 21 mm; Fit Momcozy 24 mm Cup. 2pc

Maymom 21 mm inserts (Long) compatible with Medela PersonalFit/spectra 24 mm shields. It will reduce the 24-mm shield nipple tunnel down to 21 mm. Also suitable for Momcozy/LegendairyMilk/Tsrete Wearable 24mm silicone cups. Maintain compatibility with most handsfree bra - Based on the Medela PersonalFit system. You can use most handsfree bra with your original 24 mm detachable shields having this insert inside. Can be compatible with Spectra 24mm flanges, Ameda Purely Yours 25mm flanges, Ameda Mya Joy 25mm flanges, Willow 24mm flanges, Lansino 24mm flanges. Momcozy S9/S10/S12 Wearable Breastpump 24 mm cups (not for 27 mm cups) Also fits freemie 25 mm cup to reduce its nipple tunnel BPA free, made of food-grade silicone. • Compatible with Medela and Spectra 24 mm shields/flanges • Reduces tunnel size to 21 mm • Suitable for Medela Freestyle and Momcozy S9/S11/S12 • Made of BPA-free, food-grade silicone • Maintains compatibility with most hands-free bras