Suniceme Flange Inserts 21mm for 24mm Shields — Compatible with Medela/Spectra/Elvie/Momcozy/Bellababy (4Pcs)

Overview

Suniceme flange inserts in 21mm offer a flexible way to customize your existing 24mm shields. The soft, food‑grade silicone adapts the inner diameter to a 21mm tunnel, providing a different touchpoint during pumping without requiring a new shield or bottle parts. These inserts are designed to sit inside most 24mm shields, giving you an option to refine fit and comfort based on your pumping routine.

Why this matters

Comfortable, consistent contact with the shield can influence how you feel during pumping sessions. The 21mm option may help create a more natural seal and reduce perceived pressure in the tunnel area. While results can vary, many users notice a difference in how the shield sits against the breast, especially during longer pumping sessions.

Key benefits

• Customizable fit within compatible 24mm shields, enabling a tailored pumping experience
• Lightweight, flexible silicone that feels gentle against the skin
• Broad compatibility with popular brands, including Momcozy, TSRETE, Medela, Spectra, Elvie, kmaier, Phanpy, Bellababy, NaNaLazy, and KISSBOBO
• Not compatible with 27mm shields

Care and safety

• BPA-free, food-grade silicone suitable for daily use
• Sanitize with steam, boiling water, or warm water with soap
• Clean pump parts with warm soapy water
• Replace every 1 to 2 months for best performance

Usage tips

• Observe the nipple appearance during pumping; some swelling can occur naturally
• If you’re unsure about fit, trying a 21mm insert can be a helpful option with your existing 24mm shield

What you get

• 4 silicone flange inserts
• Compact, easy-to-handle components

For best results, pair these inserts with your existing 24mm shield and monitor comfort across sessions. The aim is a comfortable, consistent fit that complements your pump routine without changing your essential setup.