Flange Inserts 13-21mm For Momcozy S12/s9, Tsrete, Spectra, Medela 24mm Shields. Enhance Your Breastfeeding Experience with These Versatile Breast Pump Flange Inserts. Crafted from Food-grade Silica Gel, These Inserts Offer a Skin-friendly and Odor-free Solution for Nursing Mothers. Designed to Be Compatible with a Wide Range of Traditional, Plug-in, and Wearable Electric Breast Pumps, They Ensure a Comfortable and Efficient Milk Expression Process. The Set Includes Five Different Sizes (13mm, 15mm, 17mm, 19mm, and 21mm) to Perfectly Fit Each Mother's Needs, Particularly Benefiting Small-nippled Mothers Using Larger Breast Shields by Preventing Nipple Trauma or Irritation. Lightweight and Easy to Use, These Inserts Are a Practical Addition to Your Breastfeeding Routine. Summary of Features: - Broad Compatibility: Suitable for Traditional, Plug-in, and Wearable Electric Breast Pumps. - Size Variety: Includes 5 Flange Insert Sizes (13mm, 15mm, 17mm, 19mm, 21mm) for a Tailored Fit. - Comfort and Safety: Made from Food-grade Silica Gel, Odor-free, Ideal for Sensitive Skin. - Practical Use: Perfect for Small-nippled Mothers with Large Breast Shields, Avoiding Nipple Trauma. - Efficient Pumping: Enhances Comfort and Efficiency During Milk Expression. - Color: White and Transparent - Material: Silica Gel - Weight: 15g / 0.52oz Package Includes: - Flange Inserts (Note: The Milk Pumps Shown in Images Are Not Included.).