4 Pack 17mm 19mm Breast Milk Pump Inserts for momcozy S9/S12/S9pro/S12pro/Lansinoh/Bellababy Pump Parts Replace, Reduce 24mm Down to 17mm/19mm

Compatible with for Momcozy S9/S12/S9 Pro/S12Pro , for Lansinoh, for Spectra, for MomMed Wearable Breast pump 24 mm cups (not for 27 mm cups) Also fits for freemie 25 mm cup to reduce its nipple tunnel. 17mm 19mm inserts (4pcs a Pack) to compatible with for medela/ spectra / momcozy 24 mm breast shields. It will reduce the 24mm shield nipple tunnel down to 17mm/19mm. SILICONE MATERIAL: 100% BPA free, the silicone insert are made of food grade silicone. It's safe, soft and odorless, nice pump parts replacement. EASY CLEAN: Wash pump parts are easy to clean, after each use with warm soapy water, can be sanitized with water steam, boiling water or microwave-steam bags. The exquisite adaptation design makes installation and disassembly easy and convenient, meeting the use needs of different breast pumps, and providing mothers with a more flexible and efficient breastfeeding experience.