Product overview Pack of 8 flange inserts, size 22 mm each. Designed to adapt 24 mm pump shields down to a 22 mm opening for a closer fit. Key features and benefits Wide compatibility: Works with many mainstream 24 mm wearable breast pumps, including Momcozy M9, M6, M5, S12 pro, V1 pro, V2, Spectra, Lasionh, NCVI, TSRETE, Medela, eufy, MOMMED, Nuliie, and Elvie 24 mm models. Fits most other 24 mm shields as well. Precise fit: Reduces the standard 24 mm shield tunnel to the correct 22 mm size, helping create a snug seal between shield and skin. Soft, flexible material: Made from food grade silicone with a soft texture that conforms to the body for increased comfort during pumping. Multiple size options available: This listing is for 22 mm inserts in an 8 piece pack. Inserts are also available in sizes 13 14 15 16 17 18 19 20 21 and 22 mm to accommodate changing needs. A separate nipple measuring tool is available to help find the correct size. Easy to use and maintain: Lightweight and simple to install into compatible 24 mm shields. Can be cleaned according to pump manufacturer instructions. How this product helps Improves flange fit for users whose nipple diameter is smaller than a 24 mm opening. Helps reduce movement and rubbing inside the shield for more comfortable pumping sessions. Provides a consistent opening size when using wearable or portable 24 mm breast pumps. Typical use scenarios If a standard 24 mm shield feels loose or allows excessive movement, insert a 22 mm flange to achieve a closer fit. When switching between pump models or wearable shields, use these inserts to standardize the nipple tunnel size for a consistent feel. For users trying different flange sizes during the breastfeeding journey, this pack provides multiple inserts for regular use or replacement. Specifications Size: 22 mm Quantity: 8 pieces per pack Material: Food grade silicone, BPA Compatibility: Fits most 24 mm wearable breast pump shields, including the models listed above Package contents Eight 22 mm silicone flange inserts Notes Check your pump or shield specifications before use to ensure compatibility. Use a nipple measuring tool if you are uncertain about the flange size for your needs.