Having the right flange size is essential for milk production. If you’re having difficulties pumping, try measuring your nipple size, you might need a flange insert
Perfectly Compatibility: The flange sizing kits perfect fit for all 24mm wearable breast pumps, for Momcozy M5/M6/M9/V1/V2/s9s12 pro/Spectra/Medela/Paruu/Willow/Elive/MomMed/Bellababy/kmaier/TSRETE/Motif Luna wearable breast pump
Food Grade Silicone Material: BPA-free, much softer for the nipples. They are clear which is very easy to see in the flange when letdown has occurred
Easy to Clean and Remove: These are a must have for pumping moms. They can be sanitized with boiling water, doesn't warp in a sterilizer
Package Content: Including 4 PCS 19 mm,1 storage box. Great option to adjust your 24 mm pump to the correct nipple size for you, ensuring a snug and secure fit