【Extensive compatibility】：These Flange Insert is designed to enhance breastfeeding comfort and is compatible with a variety of mainstream breast pump brands. Compatible with Momcozy M9/M6/M5/S12 pro//S9 pro/V1 pro/V2, Fit for Spectra Lasionh/NCVI/TSRETE/Medela/eufy/MOMMED/Nuliie/Elvie 24mm breast pump. Fit most 24mm wearable breast pumps, It will reduce the 24mm shield nipple tunnel down to correct size.

【Maximize Pumping Efficiency】：The comfortable and soft silicone material is designed to stimulate milk flow and increase comfort during use. With the added benefits of reduced pain and increased milk output, our breast pump flange inserts are a must-have for any breastfeeding mother needing to pump milk. Achieve enhanced breast pumping, reduce pumping time, and maximize milk production by using the essential flange inserts for your breast pump.

【Multiple Size, Better Fit Breast Pumps】：Our flange inserts have a wide range of sizes-13/14/15/16/17/18/19/20/21/22mm , 11 multiple size options may vary throughout the breastfeeding process,requiring different sizes of flange inserts for your breast pump. And To save moms time and energy in finding the correct size, we offer an accurate and useful nipple measuring tool. Find the perfect fit for your unique needs and enjoy a cozy pumping experience.

【Safe for both mom and baby】:Our flange sizing kit is made from food-grade silicone materials, free from BPA. They provide a soft texture that is gentle on delicate skin. The flange inserts fit closely with your skin, promoting efficient milk expression without any foreign body sensation.

【Easy & convenient】:Before use, the breast pump flange inserts can be sterilized with steam, boiling water, or microwave steam bags. After each use, the replacement breast pump parts can be washed with mild soapy water, then rinsed with clean water. We recommend replacing them every 3 months to maintain optimal functionality.