Okay, so I’ve been using these LOZAEVE flange inserts for about a month now, and wow—what a difference they make! As a first-time mom, I had NO idea flange sizing was even a thing until my nipples were screaming in pain. These inserts saved me.

The compatibility is insane—they fit my Momcozy S12 Pro AND my friend’s Spectra. The 11-size options meant I could finally find my Goldilocks fit (17mm gang where you at?). No more swollen nips or pathetic output!

Love that they’re food-grade silicone. Boiled them before first use (no weird smells like some reviews mentioned) and they’ve held up through daily pump sessions. Pro tip: coconut oil = zero friction.

Only gripe? One pack had uneven sizes (three 15mm, one 16mm—rude!). But the other sets were perfect, so just double-check your order. For the price vs. brand-name flanges? 1000% worth it.

PSA to new moms: Your nipple size CHANGES. These let me adapt without buying new flanges every time. Milk output doubled once I got the right fit—life-changing for this undersupplier!