Review on 🤱 Durceler 19mm Flange Inserts: Compatible with Medela, Spectra, Rainyb, Willow, Momcozy, TSRETE Breast Pump Shields/Cups; Reduces Nipple Tunnel to 19mm; Set of 2 by Denise Rivera

The product description says it fits 24mm flanges but for me this product was too much to create a large cross section and the silicone insert seems to be too tight being small to fit 24mm flanges I tried it and my mother was happy with S12. And even in my spectrum S2 24mm flanges and they didn't fit. I was very disappointed with this product, just spend the extra money and order the flange inserts you need direct from your pump manufacturer's website