Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps, Flange Sizing Kit Silicone Flanges Insert, Breastfeeding Essentials Kit for New Moms

Great product, fit is perfect. Fits every pump I own and seals to them all. Highly recommend for flange resizing.

So far i love this product. Helps me empty faster and the pain i use to feel before using this, i no longer feel it. I found my perfect size. And it fits in my spectra and medela pump (24mm) will purchase again when mine wears out

These inserts work great and fit my spectra pump. Easy to wash as well

Worked great. I loved the sizer that came with it. Very helpful for a first time mom. I had no pain using these.

I purchased the Nursi Luna Flange Inserts to find the right fit for my breast pump, and they have been incredibly helpful. The kit includes 10 silicone inserts in sizes 13mm, 15mm, 17mm, 19mm, and 21mm, making it easy to determine the best size for comfort and efficiency. The soft silicone material is gentle on the skin, and the inserts are compatible with most 24mm flanges, such as those from Spectra and Momcozy pumps.​The included nipple ruler and cleaning brush are thoughtful additions that enhance the overall value of the kit. Many users have reported improved comfort and milk output after using these inserts, as they help achieve a better seal and reduce discomfort during pumping sessions.​However, some users have noted that the smallest size, 13mm, may still be too large for those with smaller nipples. Additionally, while the inserts are dishwasher safe, some users have mentioned that the markings on the sides can be difficult to read over time. Despite these minor drawbacks, the overall quality and functionality make this kit a worthwhile investment for breastfeeding mothers seeking a more comfortable pumping experience.

I like how this came with multiple sizes. They fit in my pump perfectly. Also nice this came with a size guide as well

Immediately I noticed a difference in the milk output and comfort! My breasts are emptying way faster than before. The sizing chart is super helpful since I had no idea what to look for. I’m using these on my spectra 2.

the kit came in a frosted silicone, and were a thicker material which I really liked. I then ordered the separate sizes and those came in a thinner clear silicone which I didn't like. I would give the kit a 5 star, but the separate sizes would get a 2 star. hence the 3 star.UPDATE: the company reached out to offer a refund, which I think shows good customer service.