【Package Content】：6 pieces-17mm/18mm/19mm flange inserts*2 pieces, compatible with the most 24mm breast pump,it will reduce the 24mm shield nipple tunnel down to 17mm,correct size flange inserts help moms pump more comfortably and efficiently.

【Wide Compatible】：These silicone flange inserts will be compatible for Momcozy M9/M6/M5/S12pro/S9 pro/V2/V1; S18 S21 S23 Wearable Breast Pump; Medela PersonalFit Flex/Harmony/Freestyle/SwingMaxi/Sonata/Symphony;SpectraS1/S2;TSRETE;Elvie;Bellababy;Lansinoh;NCVI ; kmaier ; MomMed ; NaNaLazy; Motif Lun;Amada MYA 24mm breast shields.

【Optimal sealing, Snug Fit】:the flange size (top parts) is larger, which will be attached to breast pump seamlessly. And a little shorter than the clear flange inserts,when pumping with hand free wearable breast pump, they won’t cover the milk inlet to affect the milk flowing. promoting efficient pumping without causing irritation or discomfort.

【BPA Free,Food-Grade Silicone Material】: Our Flange insert kits are made of BPA-free food-grade silicone material,which durable and reliable. The soft-touch material provides comfortable experience for moms and can be adapted to nipples in different shapes and sizes, which not only increases the pumping efficiency but also reduce the friction/ the squeezing to nipples.

【Multi Option, Choose the Correct Size】: we offer 6 sizes 17/18/19/20/21/21mm for choose, helping you pick a perfect size.The nipple size is different during different breastfeeding periods, it is suggested that moms use a new Flange insert every 1-2 months. The size of the flange insert is very important for comfortable and efficient pumping.