Nuliie Silicone Flange Inserts Kit – 13/15/17/19/21mm for 24mm Pumps

Customize Your Pump Fit with the Nuliie Flange Inserts Kit

Breast pumping feels more comfortable when the shield matches your shape. The Nuliie Silicone Flanges Insert Replacement Kit provides sizes 13, 15, 17, 19, and 21 mm designed to work with most 24 mm shields. This broad size range helps you adapt as you move through different pumping moments. Note: the kit is not compatible with 27–28 mm shields.

What’s included and how it helps

The kit contains ten soft silicone inserts across five sizes, letting you tailor fit for a precise shield experience. The flexible, food-grade silicone is gentle on skin and works with a wide range of electric and manual pumps. You’ll also receive a complimentary cleaning brush and a nipple-measurement ruler to help you identify your best fit.

• Ten inserts across five sizes designed for 24 mm shield setups; mix and match for precision fit.
• Free nipple measurement ruler to compare before and after pumping for comfort tracking.
• Complimentary cleaning brush supports quick, thorough cleaning after use.

Comfort, efficiency, and everyday use

Designed to soften the tunnel area and reduce pressure points, these inserts can contribute to a smoother pumping experience. While results vary, many users report a more comfortable session and a potential reduction in time spent pumping when the fit is right. Remember, experiences depend on your body, pump model, and routine.

• Soft silicone delivers a gentle, skin-friendly feel during longer pumping sessions.
• Size adjustments may help you stay consistent with your pumping routine.
• Compatible with most 24 mm shield setups and a range of wearable pumps, including electric and manual models.

Care, safety, and best practices

Made from BPA-free, food-grade silicone, the inserts are dishwasher safe for easy cleaning. After pumping, wash promptly and allow to dry. For optimal performance, replace inserts approximately every two months and store them in a safe container. Because nipple size can vary with time, starting with the 10-pack helps you explore options and find your best fit.

Size guidance and travel tips

Begin with the full set to compare fit across sizes, then rotate to 2–3 favorites for daily use. The compact kit travels well, making it convenient for busy schedules and on-the-go pumping.

Support and reassurance

We back this product with responsive after-sale support. If you have sizing questions or need help choosing the right inserts for your routine, our team is ready to assist you.