22mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 22mm

Durceler 22mm inserts (2pcs a Pack) to compatible with Medela / Spectra / Elvie / S18 S21 S23 / Momcozy S9 Pro S10 S12 Pro / TSRETE / Bellababy / NCVI 24 mm breast shields. It will reduce the 24mm shield nipple tunnel down to 22mm. Also compatible with Freemie 25mm cups to reduce it down to 22mm. Also applicable to most other brands of the models for 24-25mm.
Seamless Compatibility For Optimal Milk Expression: Suitable for nipple diameter 20-21mm(after a pumping session), or measure the circumference of nipple base about 56.52 - 62.80mm 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. It can be compatible with Spectra and Medela (Freestyle, Harmony, Sonata, and Swing-Maxi pumps) and other brands.
REPLACEMENT GUIDANCE – Replace every 4-12 weeks, depending on duration and frequency of each pumping session. Durable, clear, and comfortable. BPA free, made of silicone material.
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.

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