21mm Flange Insert Compatible with Momcozy, Bellababy, Medela, Spectra Breast Pump

This product comes in a variety of models that can adjust the size of the "breast milk channel" on the breast pump cover. This feature caters to mothers with different nipple sizes, enhancing breastfeeding efficiency and increasing pumping capacity. It also ensures greater comfort for mothers during the breastfeeding process.

The Durceler 2 Piece 21mm flange inserts are designed to be compatible with a range of wearable breast pumps, including Momcozy S9, S10, S12 Pro, bluefair, BIOBOO, S18, S21, and S23 models, as well as Medela, Spectra S1, S2, TSRETE, FEISIKE, Rainyb, Bellababy MiniO, NCVI, kmaier, MomMed, NaNaLazy, NIRGU, Onlyeah, MomWills, Motif Luna, and Amada MYA 24mm breast shields. They can also be used with Lansinoh and Freemie 25mm cups, reducing them down to 21mm.

These inserts ensure seamless compatibility for optimal milk expression, suitable for nipple diameters of 18-20mm after a pumping session or for nipples with a base circumference of about 50.24-56.52mm before a pumping session. They are particularly beneficial for small-nippled mothers using large breast shields, as a proper nipple tunnel fit is crucial for comfort and efficient milk output.

These inserts should be replaced every 4-12 weeks, depending on the duration and frequency of pumping sessions. They are durable, clear, comfortable, and made of BPA-free silicone material. They maintain compatibility with most handsfree bras, allowing users to use most handsfree bra cups with their original 24/25mm detachable shields and these inserts. During use, users should gently squeeze the insert to ensure a perfect fit with the shield for optimal results.

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