Nuliie 10PCS Flange Sizing Kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Silicone Flanges Insert for Momcozy/Spectra Electric Breast Pumps, Pumping Essential Kit for Moms

I had no idea how much the wrong flange size was affecting my pumping sessions until I tried this kit. The Nuliie Flange Sizing Kit made it incredibly easy to find the perfect fit for my needs. The variety of sizes (13, 15, 17, 19, and 21mm) allowed me to experiment and discover which one provided the most comfort and efficiency.The silicone inserts are soft yet durable, and they fit seamlessly into my 24mm flanges. Cleaning is a breeze, and I appreciate that they’re BPA-free. The included nipple ruler was a thoughtful addition, making it straightforward to measure and select the right size.Since using the correct size insert, I’ve noticed a significant improvement in milk output and a reduction in discomfort. This kit is a must-have for any pumping mom looking to optimize their experience.

I am currently pregnant with my third child and turns out I had been using the wrong flange size for my breast pumps with my last two kids! This tool was super helpful and has allowed me to be able to extract colostrum before I even had my baby!! 10/10 highly recommend! Measure your nipps ladies!! Might make the difference when pumping! It sure did for me!!

This is extremely helpful to determine what size flange you need. It simplifies the process and even offers a way to sample if you feel like you are in between sizes. I have gifted this to many people for baby showers! As a first time mom, I had absolutely no idea what I was doing and this saved me a lot of trips to a lactation consultant (and saved me the pain of having an incorrect size!). An absolute MUST buy for a new mom on her breastfeeding journey.

HUGE game changer! My milk supply went from pumping 2oz to 5+ more. I had gotten masitits a couple weeks ago and they told me it happens when your not pumping all the milk out and I was so confused because I would pump for 30 minutes every 2 hours, but i finally figured it out! If your also struggling I bet you it’s because your using the wrong size flange. Anyways God bless who read this🤍

Works well. Make sure you lubricate them before pumping or the silicone feels sticky and hurts. My own fault, I didn't realize I couldn't insert them into my 21mm flanges. I pulled out the 28mm that came with the pump and was able to insert these, making the 28s become 19s. I do notice more swelling during pumps and sometimes have to pause to size up, but this could be just me.

These were perfect especially for a first time mom pumping! I will keep the flange sizer for life. And it fits perfectly in my spectra ! I wash with hot water and it does not affect them at all. I highly recommend !

These worked very well with my Spectra S2 plus! I liked that it had all the sizes and a measuring tool so I could finally figure out what size is best for me. I feel like this helped increase the amount of milk I was getting out each time and made it more comfortable!

If you plan to pump or breastfeed I highly recommend buying this or putting it on your registry before baby is born. The difference between having a fitting flange and just using the one that comes with your pump is night and day. I struggled so much with my last child and I wish I had done this sooner.