19mm Flange Insert Compatible with Multiple Breast Pump Brands

This product offers a variety of models designed to change the size of the "breast milk channel" on the breast pump cover, catering to mothers with different nipple sizes. By improving breastfeeding efficiency and increasing pumping capacity, it aims to enhance the comfort of the breastfeeding process. The Durceler 2 Piece 19mm flange inserts are compatible with Momcozy S9 S10 S12 Pro, bluefair, BIOBOO, S18 S21 S23 Wearable Breast Pump, Medela, Spectra S1 S2, TSRETE, FEISIKE, Rainyb, Bellababy MiniO, NCVI, kmaier, MomMed, NaNaLazy, NIRGU, Onlyeah, MomWills, Motif Luna, Amada MYA 24mm breast shields. These inserts reduce the 24mm shield nipple tunnel to 19mm and are also compatible with Lansinoh and Freemie 25mm cups, reducing them to 19mm as well.

Seamless Compatibility for Optimal Milk Expression: Suitable for nipple diameters of 16-18mm (after a pumping session) or with a base circumference of about 43.96 - 50.24mm before pumping. This is a great solution for small-nippled mothers using large breast shields, as a proper nipple tunnel fit is crucial for comfort and efficient milk output. The inserts are compatible with Spectra, Medela (Freestyle, Harmony, Sonata, and Swing-Maxi pumps), and other brands.

Guidance on Replacement: It is recommended to replace the inserts every 4-12 weeks, depending on the duration and frequency of each pumping session. The inserts are durable, clear, comfortable, and made of BPA-free silicone material.

Maintain compatibility with most hands-free bras: The inserts can be used with most hands-free bra cups that have the original 24/25mm detachable shields with the insert inside. During use, slight squeezing is required to ensure the insert fully fits with the shield for the perfect effect.

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