Maymom 21mm Flange Insert — 2pc, Compatible with Medela/Spectra 24mm Shields

Maymom 21 mm Insert (Long) — Custom Fit for 24 mm Shields

This two-piece silicone insert gives you a flexible way to tailor your pump setup without swapping your entire shield kit. Made from BPA-free, food-grade silicone, it feels smooth and supple to the touch, designed for comfortable, repeated use across sessions.

What it does

Designed to reduce the nipple tunnel from a 24 mm shield to 21 mm, the insert helps you tailor the fit to your body. It works with several popular 24 mm options, including Medela PersonalFit and Spectra 24 mm shields, and is also suitable for Momcozy 24 mm wearable cups. This can be useful if you’re pairing your existing parts with wearables you already own.

Compatibility highlights

• Medela PersonalFit shields (24 mm) — tunnel reduced to 21 mm
• Spectra 24 mm shields — compatible with the reduced tunnel
• Momcozy wearable cups (24 mm) — usable in wearables
• LegendairyMilk and Tsrete wearable 24 mm cups — fit and use together
• Ameda Purely Yours 25 mm flanges — flexible pairing
• Ameda Mya Joy 25 mm flanges — versatile option
• Willow 24 mm flanges — compatible choice
• Lansino 24 mm flanges — compatible choice
• Freemie 25 mm cup — tunnel reduction for a tailored fit

Hands-free bras and practical setup

Based on the Medela PersonalFit system, you can place the insert inside your original 24 mm shield to use with most hands-free bras. This setup supports a flexible pumping arrangement across brands and products you already own.

• Enhances compatibility with hands-free bras that rely on a 24 mm shield
• Supports a adaptable pumping setup across multiple brands

Choosing, using, and caring for your insert

Start with clean hands and a clean surface. The silicone insert slides inside the 24 mm shield to create a 21 mm tunnel, then you can reassemble your shield as usual. Rinse after use, wash with mild soap, and air dry to keep the material clear and supple.

Real-life use scenarios

On busy mornings, during commutes, or while traveling, this insert offers a quick way to tailor fit without replacing larger parts. It’s a practical option when you want a subtler tunnel size without committing to a full new shield set.

Note that individual results may vary, and this insert is intended as a fit option rather than a guarantee of outcome.