bliblo 21mm Flange Insert for Wearable Breast Pumps – BPA-Free Silicone, 24mm Universal

Overview

Meet the bliblo 21mm flange insert set, a BPA-free silicone accessory designed for use with most 24mm wearable breast pumps. The 21mm insert helps align the shield with your nipple tunnel, working across popular pumps from Momcozy, Medela, TSRETE and other leading brands. This approach lets you tailor the fit without replacing the entire shield, offering a more comfortable pumping experience and a potential boost to efficiency within your routine.

Material and Safety

Crafted from soft, food-grade silicone, these inserts stay gentle on skin and safe for surfaces that contact breast milk. After pumping, wash with warm soapy water, rinse thoroughly, and sterilize using boiling water or a steam process at about 100 C. For optimal performance, consider replacing inserts every two months.

Fit and Compatibility

Designed to work with most 24mm wearable shields, the 21mm size reduces the tunnel to a comfortable width. They are not compatible with 27–28mm shields. The inserts are broadly compatible with Momcozy S9/S9 Pro/S10/S12/S12 Pro, Medela, Spectra, TSRETE, Elvie, Willow and many other brands.

• Widely compatible with major 24mm wearable pumps
• 21mm insert helps reduce size mismatch and improve seal

Practical Benefits

In real-world use, these inserts may contribute to improved pumping efficiency and shorter sessions when the fit is right. The soft silicone supports comfort around the breast and nipple area, helping reduce pressure during longer pumping moments. The 4-piece set provides ready substitutes for regular use.

• Potentially faster pumping sessions with an optimized fit
• Comfort-focused design reduces pressure and pinching
• Easy cleaning and routine maintenance

Care, Maintenance and Service

Care is straightforward: wash after each use, sterilize as needed, and replace inserts every two months to maintain effectiveness and fit. The product includes 4 inserts and comes with 24-hour customer support with free replacement if the size isn’t suitable.

What's Included

Four 21mm flange inserts designed for universal 24mm shields, enabling a personalized pumping setup for everyday use.