LOZAEVE 21mm inserts to compatible with Willow / Momcozy / TSRETE / Rainyb / NCVI / Bellababy MiniO, Pocket / Maymom / Spectra S1, S2 / Medela (PersonalFit Flex, Freestyle, Harmony, Sonata, and Swing Maxi) 24mm breast shields. It will reduce the 24mm shield nipple tunnel down to 21mm. Also compatible with some 25mm cups (Freemie). Seamless Compatibility For Optimal Milk Expression: Suitable for nipple diameter 18-20mm(after a pumping session), or measure the circumference of nipple base about 50.24 - 56.52mm before a pumping session. Great solution for small-nippled mothers using large breast shields, Proper nipple tunnel fit is essential for comfort and efficient milk output. BPA 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 irritation. Maintain compatibility with most handsfree bra. You can use most handsfree bra cups with they original 24/25mm 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.
This product has a variety of models, which can change the size of the "breast milk channel" on the cover of the breast pump, so as to be suitable for mothers with different nipple sizes, help to improve the breast feeding efficiency and increase the pumping capacity, and make mothers more comfortable in the process of breast feeding.
LOZAEVE 21mm Flange Inserts Compatible with 24mm Spectra S1 S2 & Medela PersonalFit Flex Harmony Freestyle Swing Maxi Breast Pump Shields Cups; Reduce 24mm Nipple Tunnel Down to 21mm 2pc Each - DKXANISH