8 Pcs Breast Milk Pump Inserts 15/17/19/21mm, Compatible with Momcozy S12 Pro/S9 Pro/S12/S9 Wearable Breastpump Cup,Reduce 24mm Tunnel Down to Other Size (8pcs, 15/17/19/21mm)

Compatibility: The Inserts are breast pump accessories that can be used with most 24mm Shields.Compatible with any S9 Pro/S12 Pro/S9/S12 wearable breast pump., Attention: These breast pump accessories are only suitable for 24mm Shields and cannot be used with other sizes of Shields. Using coconut oil or nipple butter can reduce friction and make them easier to use., Easy Cleaning: After each use, wash the replacement pump parts with warm soapy water and rinse them thoroughly., Safety: Made of transparent silicone material,our product is BPA-free,you can use it with confidence., Replacement: The size of your insert is crucial for both comfort and efficient pumping. It is recommended to replace the insert every 1 to 2 months. Please ensure you choose the correct size.