LOTBILL 10PCS 13/15/17/19/21mm Flange Inserts for Medela/Spectra/Momcozy S9/S9pro/S10/S12/S12pro and More, Pumping Pump, 24mm Flange/Shield, Reduce Tunnel to Correct Size

Perfect for my Spectra S2 and Elvie Stride. Multiple sizes made it easy to find the perfect fit. Holds up well over dozens of uses and sanitization.

Perfecto con mi medela swing.

these arrived today. I am so excited about how high-quality the nipple measuring tool is. It will definitely be better to use than the ones that come with your breast pumps. I think these phalanges will last a long time

This item is exactly as listed and the sizing chart was very helpful and simple to use!

The material of these silicone flanges are soft and gentle on my daughter's skin, making it comfortable for her when she is using them. The different sizes help her to choose which one she needs and then the correct one provides a comfortable fit, ensuring efficient and pain-free pumping. They don't cause her any irritation or discomfort, allowing her to focus on expressing milk without worrying about soreness. So far after several uses they have withstood regular use and cleaning without losing their shape or effectiveness. A very nice set for pumping moms.