Momcozy Breast Pump Accessory for S9 Pro S12 Pro Breast Pump, Flange Insert 21mm, Made by Momcozy, 1Pc

It's better than the one that originally came with the pump

they are just fine, just couldnt use cuz i bought rong size🤦‍♀️

This product performs as described. The size is accurate, and the silicone is soft against your skin. The ridges help it stay in place so you don't have to worry about it falling out. The ridges do make it a little more difficult to assemple after cleaning. Overall, it is a good product and worth the purchase. PS Make sure to order two!

I love how convenient it is. Open and drink. My baby will only drink these not powdered formula. These are great for on the go as I feed her mainly breast milk.

Only needed 1 but works well

Mother very happy with size selection an comfort, recommend measuring nipple before ordering worked great in our case

My toddler lost both of my duck bills for my wearable breast pump. So when I ordered this i was under the impression that it was one pair. It's not. I have two boobs. I needed two duck bills and now I have to pump one boob at a time. Beware. Otherwise usable.

Only 1 sold at this price is crazy, I thought it was a pair - anyway switching brands these pinch on outer edge

I didn't received the correct size i want to return the item i ordered for 15mm flanges came 17mm

The replacement cups do NOT fit! I broke one of my pumps trying to make them fit. I reached out to customer support and all they wanted to do was offer me $15 off another one of their faulty products! I will never buy another momcozy product again. Horrible and poor products and experience.