Maymom Flange Inserts 13mm – Silicone 24mm to 13mm Reduction, Compatible with Medela, Spectra, Momcozy, Willow

Meet the Maymom Flange Inserts 13mm, a BPA-free silicone accessory designed to adapt 24mm shields to a 13mm inner diameter. This two-piece set is built to work across a broad ecosystem of pumps and wearables, helping you explore a potentially different comfort profile without changing your routine. The soft, food-grade silicone offers a comfortable touch and easy cleanup, while the compact 13mm tunnel aims to provide new sizing possibilities.

Broad compatibility

The inserts are described as Long 13 mm inserts that reduce the 24mm shield nipple tunnel to 13 mm. They’re designed to pair with a range of brands and cup systems, including Medela PersonalFit and Spectra 24 mm shields, and wearable 24mm silicone cups from Momcozy S9 Pro/S12 Pro, LegendairyMilk, and Tsrete. This flexibility may help you continue using your preferred setup with a more compact inner diameter.

• Medela PersonalFit / Spectra 24 mm shields
• Momcozy S9 Pro / S12 Pro, LegendairyMilk, Tsrete wearable 24mm cups

Additional flange ecosystem compatibility

• Spectra 24mm flanges
• Ameda Purely Yours 25mm flanges
• Ameda Mya Joy 25mm flanges
• Willow 24mm flanges
• Lansino 24mm flanges
• Freemie 25mm cups

Note: Not for 27 mm M1 cups. Not every 24mm system is guaranteed to work with these inserts, so please verify compatibility with your specific flange and cup pairing.

What you gain

• Size adaptation: converts a 24mm tunnel to a 13mm inner diameter for a potentially different fit across brands
• Trusted materials: BPA-free, food-grade silicone designed for repeated use
• Convenient packaging: includes two inserts for easy swapping or replacement

Care and usage tips

Insert and remove with gentle pressure, rinse after use, and clean with mild soap. Dry thoroughly before storage to help maintain silicone integrity and longevity.

These inserts are designed to complement existing pump setups, offering a flexible option to try a different fit without purchasing new shields. Benefits are described as possibilities based on fit, not guarantees, so consider your personal comfort and workflow when evaluating them.