10PCS Flange Sizing kit 13/15/17/19/21mmAnd Ruler, for 24mm Flange/Shield of Most Pumps, BPA-Free Flange Inserts, Compatible with Momcozy/Elvie/Spectra/Bellababy/TSRETE/Nuliie Breast Pumps

• 【High Compatibility】Inserts 13/15/17/19/21mm (10pcs) are designed to fit most 24mm wearable breast pumps.(For example, compatible with Momcozy S12 Pro/S9 Pro/S12/S9 Hands-Free breast pump). Use with 24mm breast Shields for TSRETE/Medela/Spectra/Elvie/Willow/Bellaaby/Motif Luna/Ameda and others. They effectively reduce the 24mm shield nipple tunnel to the correct size • 【Must-Have Accessory For Breast Pump】Achieve enhanced breast pumping, reduce pumping time, and maximize milk production by using the essential inserts for your breast pump. 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 inserts are a must-have for any breastfeeding mother needing to pump milk • 【Getting The Right Size】Size can vary throughout different breastfeeding stages, requiring different sizes of inserts for your breast pump. We bolster breastfeeding mothers' confidence by including a complimentary nipple sizing tool, so you can easily find the perfect fit without the guesswork. Our sizer allows for exact measurements to ensure maximum comfort and pumping efficiency • 【Safe & Easy to Clean】Made for busy breastfeeding mothers, these inserts are easy to clean and maintain. We recommend washing the pump inserts promptly after each use and replacing them every 2 months to maintain optimal functionality • 【For Moms】 A must have gift for new moms! Let moms find the right inserts to provide every mother with the beauty of parenthood. Meet the needs of moms pumping without hassle, wherever they are