As a mom who's been through the breastfeeding journey, I can't stress enough how crucial the right flange size is. The Dwelio Flange Sizing Kit has been an absolute game-changer for me. The kit comes with 10 silicone flange inserts in five different sizes (13mm to 21mm), a nipple measurement tool, and a cleaning brush - everything you need in one package.

The first thing that impressed me was the quality of the silicone inserts. They're so much softer and more comfortable than the hard plastic flanges that come with most pumps. I used to dread pumping sessions because of the discomfort, but these inserts made a world of difference.

The included nipple ruler was incredibly helpful. Like many moms, I had no idea I was using the wrong size flange until I measured properly. Switching to the correct size (17mm for me) immediately improved my comfort and milk output - I went from getting 2oz per session to nearly 5oz!

One thing to note: while these work with most 24mm flanges, they didn't fit perfectly with my Momcozy S12 pump (as mentioned in some reviews). However, they worked flawlessly with my Medela Pump in Style. The cleaning brush is a nice bonus - it makes maintaining hygiene between pumps so much easier.

If you're on the fence about buying this, just do it. The price is reasonable compared to buying individual flanges, and having multiple sizes means you're covered as your body changes throughout your breastfeeding journey. This kit literally saved my breastfeeding experience when I was ready to give up.