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

The sizer is so easy to use. The flanges themselves are flexible and comfortable. Easy to put inside the pump and easy to take out and clean. They also hold up well in the sterilizer. Would definitely recommend this rather than paying a fortune for new pump parts!

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.

This Nuliie flange sizing kit was a game-changer for my pumping journey! I had no idea how important the right flange size was until I started experiencing discomfort and low output. This kit made it so easy to find my correct size and improve both comfort and milk flow instantly.The materials are soft, easy to clean, and compatible with my pump. I love that it comes with multiple sizes so I could test and find what truly worked for me. It’s also super convenient to carry around and store.If you’re a new mom or struggling with pumping pain or inefficiency, I highly recommend giving this kit a try. It made a huge difference for me!

LOVE these, love that it came with sizing chart and cleaning sponge. It comes with the most common sizing. They may not fit everyone. Good for the price!

This was a great set for getting started with breastfeeding and pumping. The flanges fit nicely in my spectra pump. The sizing kit was very helpful for a new time mom. I liked how it also came with a cleaning brush.

Other reviews say they are hard to remove, which I didn't think I would experience using a 25mm flange. I have had some difficulty but once you figure out a good technique it's easy. Having all the sizes and measuring tool is amazing. Though if you don't use some kind of lubricant before use like a nipple cream it can be a bit uncomfortable. Overall theyve been an amazing product.

I had no idea how important sizing was to get the best output, but once I did my research I ordered this kit and it helped tremendously. Comes with multiple different flange inserts and a measuring chart so you can get the best fit. Noticed a big difference!

I have a spectra S2 and the flanges fit perfectly! Easy to remove too for cleaning. The only caveat is make sure the flanges are wedged in tightly into the pump parts. Otherwise the milk gathers in between the flange and the pump. Overall, very happy with these flanges!