19mm Flange Insert for Hands Wearable Breast Pumps Key benefits Restores a secure fit when the standard flange is too large. The 19mm insert reduces flange diameter to provide a closer fit for users who need a smaller size. Helps improve seal and comfort during wearable, hands pumping sessions by adapting the flange to better match nipple size. Compact, easytoinstall accessory designed for quick replacement or size adjustment without modifying the main pump unit. What it does Function: Inserts into the existing flange to reduce the effective opening to 19mm. Size: Precisely sized 19mm to suit users requiring a smaller flange option. Performance: Allows the wearable pump to maintain its hands function while offering a tailored fit for better comfort and consistent use. Compatibility Designed for use with wearable hands pumps. Compatible with Mumgaroo wearable breast pump and compatible with MomMed S18 and S21, NICEGREEN Life S21, and MISSAA S18 and S21 models. Practical details Simple to install and remove for cleaning or swapping sizes. Intended as an accessory to adapt pump flange fit; does not the main flange assembly. Suitable for users who need a smaller flange size to achieve a closer fit. Use scenarios Daily commute: Swap in the 19mm insert when the standard flange feels loose, maintaining a stable and discreet wearable pumping setup during travel. Workplace pumping: Use the insert for longer hands sessions at work to improve comfort and reduce shifting. Spare or replacement: Keep an extra insert on hand to a lost or worn piece quickly without interrupting regular pump use. Notes Confirm 19mm is the correct flange size for your fit before use. Check compatibility with your specific pump model before installation.