Maymom Flange inserts for freemie flanges; small collection cups

Maymom Inserts to reduce Freemie cups from 25mm to 21mm; Compatible with Medela 24mm PersonalFit Shield, Spectra 24mm, Ameda Purely Yours 25mm Flanges, Ameda Mya Joy 25mm Flanges, 24mm Willow Flanges ansino 0.9 45 in, compatible with Momcozy S9/S10/S12 Wear. Breast pump capable of 2 4mm cups (not for 27mm cups), LegendaryMilk/Tsrete Wearable 24mm Silicone Cup Made from BPA-free silicone Set of 2 Suitable for nipple diameter (after pumping session) 18-20mm Not compatible with Medela PersonalFit Flex 24mm, Luna 24 Pattern, Ameda Mya/Ameda Mya Pro 24mm Flanges, Elvie/Elvie Stride 24mm Flanges, Momcozy M1 Flange, Freemie SlimFit 5, SlimFit 6