Compatible with Medela/Spectra 24 mm shields.

Also suitable for Ameda Mya Pro, Momcozy/LegendairyMilk/Tsrete Wearable 24mm silicone cups, Motif Luna 24mm flanges, Ameda Mya 24mm flanges, Ameda Mya Pro 24mm flanges, Ameda Purely Yours 25mm flanges, Ameda Mya Joy 25mm flanges, Willow 24mm flanges, Lansinoh 24mm flanges. Momcozy S9/S10/S12 Wearable Breastpump 24 mm cups (not for 27 mm cups), Freemie 25 mm cup.