Nuliie10PCS 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.

This kit was extremely helpful in finding my proper flange size for my breast pump. Once I found the right size, I now place the silicone flange inside the larger plastic 24mm flange that attaches to my breast pump. The seal is great and works perfectly! Easy to clean and sterilize too.

I got this flange measurement set to use with my Medela pumps (which all fit 24mm), and I'm really happy with it. I wanted a variety of insert sizes in case my needs changed, and this set delivered. The inserts are definitely more comfortable than pumping without them, and I love that I can include them in my regular sterilization routine.The set came with a small foam brush (handy for cleaning), a measurement card with sizing holes, and a pair of inserts in different sizes. Everything feels well made, and it's a great value if you're trying to find your best fit.

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!

I didn’t realize how much of a difference flange size made until I used this kit. The Nuliie Flange Sizing Kit helped me find the perfect fit and completely changed my pumping experience. Definitely noticed more comfort, better output, and way less frustration. The inserts are soft, high quality, and easy to clean. I use them with my standard 24mm flanges, and they pop right in without any issues. I love that they’re BPA-free and come with a clear nipple ruler for measuring, which made it easy to finally understand what size I actually needed.My only complaint: the inserts come grouped in sets like 13/15/17/19mm, so I didn’t know which set to buy before getting the sizer. I wish I had known to start with the ruler first it would have saved me some trial and error. If you're a pumping mom dealing with pain or low output, this kit is absolutely worth it. Just be sure to measure first.

Really love this set! Comes with 2 sets of nipple measurements and many different size flanges to choose from. They’re easy to insert and clean and good quality!

This was so helpful after my son was born. The lactation consultant in the hospital didnt tell me about these. When I came across it online somewhere I knew i needed to get them. Helps so much with pain or discomfort while pumping, great value for the price. The flanges even come in pairs so you don't have to buy two.

I ordered this kit to size myself for pump inserts. It was very useful to find the right size and had everything I needed. The inserts fit in my spectra pump and my mom cozy v1 pro pump. They’re easy to insert and easy to clean. I also like that it comes with multiple sizes for when my nipples are chewed up and swollen from my newborn!