Hey breastfeeding mamas! These replacement flanges are absolute game-changers for your wearable breast pump experience. Specifically designed to be compatible with S32 breast pumps, the 24mm size is perfect for many mothers and really helps with getting that fresh milk to your baby while giving you more comfortable pumping sessions. Made from 100% quality silicone that's completely BPA-free, they're super gentle on your skin and way more comfortable than hard plastic flanges. The closed system design is brilliant - it features dual channel anti-backflow technology that completely separates gas and milk, so even if you knock over the pump, there's no contamination and no wasted milk. The silicone diaphragm prevents milk from refluxing, and the duckbill valve design ensures milk only moves in one direction - up and out, keeping everything clean and pollution-free. What's really smart is how these flange inserts accommodate changes in nipple size throughout different lactation stages, so they grow with you during your breastfeeding journey. If you've been struggling with discomfort, milk backflow issues, or just want a more hygienic pumping setup, these replacement parts make such a difference in your daily routine. Seriously, investing in quality replacement parts like these can totally transform your pumping experience from something you dread to something that's actually comfortable and efficient!