Nipple Measurement Tool for Flanges, Flange Sizing Kit, Flange Size Measure for Nipples, Nipple Sizer for Flanges, Nipple Flange Measuring Tool, Nipple Ruler for Breast Pump Flange Sizing Kit (Pink)

The 21mm Works well with Spectra 24mm and lanisoh 25mm flanges

I’ve had this for three months and still use it because nipple size changes all the time! Very accurate this helped me find my flange size so now I can pump comfortably.

I like that it’s made from a durable material.Serves you in the long run.

These made it easy to measure and determine what flanges I needed to purchase. Ended up sharing with multiple girlfriends when they had their babies. Definitely worth the price!

I use the 20mm flange insert with a Spectra S2 24mm flange. I wish the insert fit more snug into the pump. There is always breast milk in between the flange and the insert. While I wash the flanges, inserts and bottles in between every pump, I think the constant removal of the inserts will cause them to need to be replaced more often. Just my own opinion. Other than that I’m happy with the product, price and quantity they came in.

Great fit! No more little titty problems!

I didn't like them, I recommend just buying the correct size flange. The inserts were not comfortable and hard to clean because you're adding another part.

This product was recommended to me in the hospital after giving birth by a lactation consultant. After using them to find my correct flange size, I ordered new flanges that fit correctly. Now, milk output is much higher and pumping is so comfortable.After initially using them to find my correct size, I now use them permanently in my portable, wearable pumps. I am so glad these were recommended to me-especially for my peace of mind as a clueless ftm. They are worth it!