· The authentic Momcozy wearable breast pump diaphragm accessories are only suitable for use with the Momcozy Mobile Style | M6. Momcozy Original Parts FSA/HSA eligible.· Easy cleaning, wash Momcozy Mobile Style | M6 parts after each use with warm soapy water and rinse well. Please clean with a temperature of ≤100℃（212℉).· BPA-free, made of food-grade silicone material. All Momcozy pump parts that come in contact with breast milk are BPA-free, giving you peace of mind about your baby's milk.· Made for moms, by moms. We've committed our lives to providing the best breast pumps, accessories, education, and customer care that we can, supporting every mother with the beauty of parenthood. Meeting moms pump wherever without hassle needs.· Momcozy diaphragm accessories can perfectly meet the accessories you need when using Momcozy Mobile Style | M6 breast pump. The diaphragm is used to help the breast pump maintain the seal to prevent milk leakage.