Flange Inserts 13/15/17/19/21mm Kit

The essentials

New mothers can continually refine comfort during pumping with this 10-piece flange insert kit. The set features five graduated sizes 13, 15, 17, 19 and 21mm, with two inserts of each size, designed to fit most 24mm flange shields. Made from food-grade silicone, the inserts are soft to the touch and BPA-free, providing a gentle and skin-friendly option for extended pumping sessions. Easy to install and remove, they help you quickly tailor fit without compromising suction or comfort when regular measurements are taken. This practicality supports a calmer, more comfortable pumping routine, which can make breastfeeding more enjoyable for both mum and baby.

The kit includes clear guidance on measuring to determine the correct size. Use the nipple ruler to assess fit in front of a mirror or in a photo to ensure you’re not forcing a seal that could cause discomfort. Regular checking and adjustment of flange size can prevent soreness and improve efficiency, especially as nipples may shift through different feeding stages. By prioritising the right size, new mothers may experience more consistent suction and a smoother feeding experience overall.

The silicone inserts are flexible enough to resist damage from bending while remaining resilient under daily use. Their soft touch supports sensitive skin and reduces the risk of irritation during pumps. With BPA-free construction and skin-friendly materials, this 10-piece set is built for long-term reliability, giving you a practical, value-focused addition to your breastfeeding kit. When used correctly with compatible 24mm shields, these inserts help you preserve comfort throughout each pumping session, supporting a healthier feeding journey for baby and mum alike.

Technical details

• Name: Flange Inserts 13/15/17/19/21mm Kit
• Type: Flange inserts
• Format: Silicone
• Size: 13/15/17/19/21mm (each size two units)
• Capacity: 10 pieces total
• Material: Food-Grade Silicone, BPA-Free
• Weight: lightweight for easy handling
• Colour: Transparent or natural silicone tone
• Dimensions: compatible with 24mm flange/shield of most pumps
• Additional notes: Easy to clean, designed for regular use and gentle on skin

Who it’s for

This kit is aimed at new mums seeking a customisable, comfortable pumping experience. If you’ve noticed discomfort with a single flange size or are adjusting to changing needs during breastfeeding, these inserts offer a practical way to fine-tune fit without purchasing multiple shields. The flexible silicone and straightforward sizing options support ongoing use as you and your baby settle into routines, helping protect nipple health while supporting effective milk expression.