Belmikal 14mm Silicone Flange Insert – Reduces 24/25mm Shields to 13mm, Compatible with Spectra, Medela, Willow & More

Meet Belmikal's Silicone Flange Insert in a compact 14mm size. This silicone accessory is designed to adapt larger shield assemblies into a closer, more comfortable pumping fit. By narrowing the nipple tunnel to about 13mm, it helps align with nipple diameters around 11 to 13mm during pumping sessions, delivering a stable seal and a smoother pumping experience without altering the pump’s core performance.

Why choose this insert

• Reduces the tunnel opening from 24mm or 25mm shields to about 13mm, enabling a personalized fit during pumping.
• Broad compatibility with 24mm/25mm shields from popular brands such as Spectra, Motif Luna, Medela, Momcozy, Ameda, Zomee, Willow, Elvie and Lansinoh 25mm shields.
• Made from BPA- and DEHP-free silicone, offering flexible comfort with durable, repeat use.

What you get

• Content: a 2-piece 14mm flange insert set designed for easy handling and replacement.
• Designed for nipple diameters 11–13mm during pumping, helping you achieve a steady seal.
• Compatible with most hands-free bras and a variety of pump systems.
• Note: the size refers to the tunnel opening (the beginning), not the tunnel length.

Care, use, and safety

Easy to install and remove, the insert is BPA- and DEHP-free silicone. Wash with warm, soapy water after each use and rinse well. It can be sanitized using water steam, boiling water, or microwave steam bags.

Size range available

• Available sizes include 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, and 21mm.
• Designed to complement a range of shields for flexible, personalized fit across sessions.