20mm Silicone Flange Inserts Compatible with for Spectra S1/S2, Medela, Bellababy, Elvie, Paruu R12 P10, Momcozy S9 S10 S12 Pro, Freemie Breast Pump Shield, Reduce 27-28mm Tunnel to 20mm, 2pcs

LOZAEVE 20mm flange inserts to compatible with Spectra S1/S2, Bellababy, Elvie, Paruu R12 P10, Momcozy S9/S10/S12/M1 Wearable, Freemie, Evenflo, Maymom breast pump shields. It will reduce the 27-28mm nipple tunnel down to 20mm. Also fit for Medela (PersonalFit Flex, Harmony, Freestyle, Swing Maxi, Sonata, and Symphony) breast pump shields, It will reduce the 27mm nipple tunnel down to 20mm. 2pcs each pack10Seamless Compatibility For Optimal Milk Expression: Suitable for nipple diameter 17-19mm(after a pumping session), or measure the circumference of nipple base about 47.10 - 53.38mm before a pumping session10Great solution for small-nippled mothers using large breast shields, Proper nipple tunnel fit is essential for comfort and efficient milk output10BPA free, made of silicone material. Durable, clear, and comfortable. This accessory helps breast shields for more effective pumping and maximized milk expression while helping to avoid nipple trauma or irritation10Maintain compatibility with most handsfree bra. You can use most handsfree bra cups with they original 27/28mm detachable shields having this insert inside. During operation, you need to squeeze slightly to make the Insert fully fit with the shield to achieve the perfect effect