Calling all pumping mamas! These Maymom flange inserts are absolute game-changers if your pump flanges don't fit quite right. They're designed to reduce 24mm shield openings down to 18mm for a much more comfortable, snug fit. The best part? They work with so many popular pumps - Elvie Single and Double Electric, Elvie Stride, Medela PersonalFit Flex, Momcozy S9/S10/S12, and several others. They're the short version so no trimming needed, and they're made from food-grade silicone that's BPA-free and completely safe for you and baby. Even with these inserts installed, you can still use most hands-free bras - such a relief! The material is really smooth and comfortable, way better than pumping with ill-fitting flanges. Seriously, if you've been dealing with pain or inefficiency while pumping, these little inserts might solve all your problems. So much more affordable than buying all new pump parts too!